diff --git a/lib/GPIO/TCA9554PWR_Driver.cpp b/lib/GPIO/TCA9554PWR_Driver.cpp
index 0c1d864..75cf5b5 100644
--- a/lib/GPIO/TCA9554PWR_Driver.cpp
+++ b/lib/GPIO/TCA9554PWR_Driver.cpp
@@ -53,6 +53,12 @@ namespace drivers
     return setPort(newState);
   }
 
+  const bool TCA9554PWR::toggleOut(const uint8_t channel)
+  {
+    bool value;
+    return readOut(channel, value) && setOut(channel, value);
+  }
+
   const bool TCA9554PWR::setPort(const uint8_t state)
   {
     if (writeRegister(TCA9554_OUTPUT_REG, state))
@@ -61,7 +67,7 @@ namespace drivers
     return false;
   }
 
-  const bool TCA9554PWR::readOut(const uint8_t ch)
+  const bool TCA9554PWR::readOut(const uint8_t ch, bool &state)
   {
     uint8_t currState(0);
     if (ch < DO1 || ch > DO8)
@@ -71,12 +77,13 @@ namespace drivers
     }
     if (!readPort(currState))
       return false;
-    return (currState && (High >> ch));
+    state = (currState && (High << ch));
+    return true;
   }
 
   const bool TCA9554PWR::readPort(uint8_t &state)
   {
-    if (readRegister(TCA9554_INPUT_REG, state))
+    if (readRegister(TCA9554_OUTPUT_REG, state))
       return true;
     LOG_ERROR("Unable to read IO port: state[%02x]", state);
     return false;
diff --git a/lib/GPIO/TCA9554PWR_Driver.h b/lib/GPIO/TCA9554PWR_Driver.h
index 506e58a..ab4e2a6 100644
--- a/lib/GPIO/TCA9554PWR_Driver.h
+++ b/lib/GPIO/TCA9554PWR_Driver.h
@@ -42,9 +42,10 @@ namespace drivers
         ~TCA9554PWR();
 
         const bool setOut(const uint8_t channel, const bool state);
+        const bool toggleOut(const uint8_t channel);
         const bool setPort(const uint8_t state);
 
-        const bool readOut(const uint8_t channel);
+        const bool readOut(const uint8_t channel, bool &state);
         const bool readPort(uint8_t &state);
 
     private:
diff --git a/lib/RS485/RS485_Driver.cpp b/lib/RS485/RS485_Driver.cpp
index 9230b46..040c68e 100644
--- a/lib/RS485/RS485_Driver.cpp
+++ b/lib/RS485/RS485_Driver.cpp
@@ -69,16 +69,18 @@ namespace drivers
   }
 
   void MODBUS::delayAccess(const uint8_t device)
-    {
-      if (device == m_lastDevice) return;
-        auto now = millis();
-        if ((now - m_lastAccess) < c_minDelay) // fixed 10 milliseconds delay between commands
-        { // minimum m_lastRequest between requests
-            delay(now - m_lastAccess);
-        }
-        m_lastAccess = now;
-        m_lastDevice = device;
+  {
+    if (device == m_lastDevice)
+      return;
+    auto now = millis();
+    if ((now - m_lastAccess) < c_minDelay) // fixed milliseconds delay between commands to different devices
+    {                                      // minimum m_lastRequest between requests
+      LOG_WARN("MODBUS access delay", now - m_lastAccess, "device", device);
+      delay(now - m_lastAccess);
     }
+    m_lastAccess = millis();
+    m_lastDevice = device;
+  }
 
   // Func 0x01
   const bool MODBUS::readCoils(const uint8_t device, const uint16_t reg, const uint16_t num, std::vector<bool> &coils)
@@ -88,7 +90,7 @@ namespace drivers
     LOG_DEBUG("Read coils: dev[", device, "], reg[", reg, "], num[", num, "]");
     return readBinary(device, func, reg, num, coils);
   }
-  
+
   // Func 0x02
   const bool MODBUS::readInputs(const uint8_t device, const uint16_t reg, const uint8_t num, std::vector<bool> &inputs)
   {
@@ -97,7 +99,7 @@ namespace drivers
     LOG_DEBUG("Read multi inputs: dev[", device, "], reg[", reg, "], num[", num, "]");
     return readBinary(device, func, reg, num, inputs);
   }
-  
+
   // Func 0x03
   const bool MODBUS::readHoldingRegisters(const uint8_t device, const uint16_t reg, const uint8_t num, std::vector<uint16_t> &values)
   {
@@ -106,7 +108,7 @@ namespace drivers
     LOG_DEBUG("Read multi holding registers: dev[", device, "], reg[", reg, "], num[", num, "]");
     return readInteger(device, func, reg, num, values);
   }
-  
+
   // Func 0x04
   const bool MODBUS::readInputRegisters(const uint8_t device, const uint16_t reg, const uint8_t num, std::vector<uint16_t> &values)
   {
@@ -115,7 +117,7 @@ namespace drivers
     LOG_DEBUG("Read multi input registers: dev[", device, "], reg[", reg, "], num[", num, "]");
     return readInteger(device, func, reg, num, values);
   }
-  
+
   // Func 0x05
   const bool MODBUS::writeCoil(const uint8_t device, const uint16_t coil, const bool value)
   {
@@ -124,7 +126,7 @@ namespace drivers
     LOG_DEBUG("Write single coil: dev[", device, "], coil[", coil, "], value[", value ? "true" : "false", "]");
     return writeBinary(device, func, coil, {value});
   }
-  
+
   // Func 0x06
   const bool MODBUS::writeRegister(const uint8_t device, const uint16_t reg, const uint16_t value)
   {
@@ -133,7 +135,7 @@ namespace drivers
     LOG_DEBUG("Write single register: dev[", device, "], reg[", reg, "], value[", value, "]");
     return writeInteger(device, func, reg, {value}, false);
   }
-  
+
   // Func 0x0F
   const bool MODBUS::writeCoils(const uint8_t device, const uint16_t coils, const std::vector<bool> &values)
   {
@@ -142,7 +144,7 @@ namespace drivers
     LOG_DEBUG("Write multi coils: dev[", device, "], start[", coils, "], num[", values.size(), "]");
     return writeBinary(device, func, coils, values);
   }
-  
+
   // Func 0x10
   const bool MODBUS::writeRegisters(const uint8_t device, const uint16_t reg, const std::vector<uint16_t> &values)
   {
diff --git a/lib/RS485/RS485_Driver.h b/lib/RS485/RS485_Driver.h
index 0fee522..de807d8 100644
--- a/lib/RS485/RS485_Driver.h
+++ b/lib/RS485/RS485_Driver.h
@@ -34,7 +34,7 @@ namespace drivers
 
         const uint8_t c_respHeaderSize = 3;
         const uint8_t c_respCrcSize = 2;
-        const uint16_t c_minDelay = 50;
+        const uint16_t c_minDelay = 10;
 
         typedef struct
         {
diff --git a/lib/SENECA/S50140_Driver.cpp b/lib/SENECA/S50140_Driver.cpp
index f29b818..858c3a0 100644
--- a/lib/SENECA/S50140_Driver.cpp
+++ b/lib/SENECA/S50140_Driver.cpp
@@ -78,7 +78,7 @@ namespace drivers
         { // minimum m_lastRequest between requests
             delay(now - m_lastRequest);
         }
-        m_lastRequest = now;
+        m_lastRequest = millis();
     }
     
     const uint8_t S50140::getRegset()
diff --git a/lib/SENECA/S50140_Driver.h b/lib/SENECA/S50140_Driver.h
index ec65199..b63bd29 100644
--- a/lib/SENECA/S50140_Driver.h
+++ b/lib/SENECA/S50140_Driver.h
@@ -13,7 +13,7 @@ namespace drivers
     private:
         const uint8_t c_maxRetries = 5;
         const uint8_t c_dataWords = 2;
-        const uint16_t c_minDelay = 200;
+        const uint16_t c_minDelay = 500;
 
         const uint16_t REG_V = 0x100C;
         const uint16_t REG_A = 0x1016;
diff --git a/lib/utils/utils.cpp b/lib/utils/utils.cpp
index fe50deb..d296446 100644
--- a/lib/utils/utils.cpp
+++ b/lib/utils/utils.cpp
@@ -1,5 +1,6 @@
 #include "utils.h"
 
+
 void printBytes(const char title[], const std::vector<uint8_t> &b)
 {
   Serial0.flush();
@@ -18,20 +19,32 @@ void printBytes(const char title[], const std::vector<uint16_t> &b)
   printf("%s: ", title);
   for (auto v : b)
   {
-      printf("0x%04x ", v);
-    }
-    printf("\n");
-    Serial0.flush();
+    printf("0x%04x ", v);
+  }
+  printf("\n");
+  Serial0.flush();
 }
 
 void printBool(const char title[], const std::vector<bool> &vals)
 {
-    Serial0.flush();
-    printf("%s: ", title);
-    for (auto j(0); j < vals.size(); j++)
-    {
-        printf("%s ", vals.at(j) ? "True" : "False");
-    }
-    printf("\n");
-    Serial0.flush();
+  Serial0.flush();
+  printf("%s: ", title);
+  for (auto j(0); j < vals.size(); j++)
+  {
+    printf("%s ", vals.at(j) ? "True" : "False");
+  }
+  printf("\n");
+  Serial0.flush();
+}
+
+const std::string printBoolVec(const std::vector<bool> &vals)
+{
+  std::string buf;
+  buf.reserve(vals.size()+1);
+  buf.append("b");
+  for (const auto v : vals)
+  {
+    buf.append(v ? "1" : "0");
+  }
+  return buf;
 }
diff --git a/lib/utils/utils.h b/lib/utils/utils.h
index 1ac741a..6e04830 100644
--- a/lib/utils/utils.h
+++ b/lib/utils/utils.h
@@ -4,6 +4,7 @@
 
 #include <Arduino.h>
 #include <DebugLog.h>
+#include <string>
 #include <vector>
 
 ///////////// UTIL Functions /////////////////
@@ -13,3 +14,5 @@ void printBytes(const char title[], const std::vector<uint8_t> &b);
 void printBytes(const char title[], const std::vector<uint16_t> &b);
 
 void printBool(const char title[], const std::vector<bool> &vals);
+
+const std::string printBoolVec(const std::vector<bool> &vals);
diff --git a/src/digitalIO.cpp b/src/digitalIO.cpp
index d42356a..3b2e054 100644
--- a/src/digitalIO.cpp
+++ b/src/digitalIO.cpp
@@ -1,4 +1,5 @@
 #include <digitalIO.h>
+#include <utils.h>
 
 digitalIO::digitalIO(drivers::I2C &i2c, drivers::MODBUS &bus, std::vector<uint8_t> remotes) : m_localOuts(drivers::TCA9554PWR(i2c, TCA9554_ADDRESS)), m_remoteAddrs(remotes)
 {
@@ -9,31 +10,76 @@ digitalIO::digitalIO(drivers::I2C &i2c, drivers::MODBUS &bus, std::vector<uint8_
 
     for (auto a : remotes)
     {
-        m_remotes.emplace_back(remoteIO(a, bus));
+        m_remotes.emplace_back(a, bus);
     }
+    LOG_INFO("Initialized digitalIO -> inputs", getInNum(), "outputs", getOutNum());
 }
 
 digitalIO::~digitalIO()
 {
 }
 
-void digitalIO::digitalIOWrite(const uint8_t ch, const bool value)
+void digitalIO::digitalOutWrite(const uint8_t ch, const bool value)
 {
     if (ch < 0 || ch > getOutNum())
     {
-        LOG_ERROR("Invalid digitalIOWrite channel number", ch);
+        LOG_ERROR("Invalid digitalOutWrite channel number", ch);
+        return;
     }
 
     if (ch < drivers::TCA9554PWR::DO_MAX) // write to i2c device for local outputs
     {
-        digitalWriteLocal(ch, value);
+        writeLocal(ch, value);
     }
     else
     {
-        digitalWriteRemote(ch - drivers::TCA9554PWR::DO_MAX, value);
+        writeRemote(ch - drivers::TCA9554PWR::DO_MAX, value);
     }
 }
-const bool digitalIO::digitalIORead(const uint8_t ch)
+
+void digitalIO::digitalOutWritePort(const std::vector<bool> &values)
+{
+    if (values.size() != getOutNum())
+    {
+        LOG_ERROR("Invalid digitalOutWrite channel number", values.size());
+        return;
+    }
+    const std::vector<bool> locals(values.begin(), values.begin() + drivers::TCA9554PWR::DO_MAX);
+    const std::vector<bool> remotes(values.begin() + drivers::TCA9554PWR::DO_MAX, values.end());
+    writeLocalPort(locals);
+    writeRemotePort(remotes);
+}
+
+const bool digitalIO::digitalOutRead(const uint8_t ch)
+{
+    if (ch < 0 || ch > getOutNum())
+    {
+        LOG_ERROR("Invalid digitalOutRead channel number", ch);
+        return false;
+    }
+
+    if (ch < drivers::TCA9554PWR::DO_MAX) // write to i2c device for local outputs
+    {
+        return readLocalIn(ch);
+    }
+    else
+    {
+        return readRemoteIn(ch - drivers::TCA9554PWR::DO_MAX);
+    }
+}
+
+const std::vector<bool> digitalIO::digitalOutReadPort()
+{
+    const std::vector<bool> locals(readLocalOutPort());
+    const std::vector<bool> remotes(readRemoteOutPort());
+    std::vector<bool> rv;
+    rv.reserve(getOutNum());
+    rv.insert(rv.begin(), locals.begin(), locals.end());
+    rv.insert(rv.end(), remotes.begin(), remotes.end());
+    return std::move(rv);
+}
+
+const bool digitalIO::digitalInRead(const uint8_t ch)
 {
     if (ch < 0 || ch > getInNum())
     {
@@ -42,70 +88,192 @@ const bool digitalIO::digitalIORead(const uint8_t ch)
 
     if (ch < (DI_MAX - DI1)) // read from local inputs not as gpio numbers
     {
-        return digitalReadLocal(ch);
+        return readLocalIn(ch);
     }
     else
     {
-        return digitalReadRemote(ch - (DI_MAX - DI1));
+        return readRemoteIn(ch - (DI_MAX - DI1));
     }
 }
 
+const std::vector<bool> digitalIO::digitalInReadPort()
+{
+    const std::vector<bool> locals(readLocalInPort());
+    const std::vector<bool> remotes(readRemoteInPort());
+    std::vector<bool> rv;
+    rv.reserve(getInNum());
+    rv.insert(rv.begin(), locals.begin(), locals.end());
+    rv.insert(rv.end(), remotes.begin(), remotes.end());
+    return std::move(rv);
+}
+
 void digitalIO::reset()
 {
     // set all local and remote outputs to 0
     m_localOuts.setPort(0x00);
-    for (auto r: m_remotes)
+    for (auto r : m_remotes)
         r.resetAll(false);
 }
 
+const uint8_t digitalIO::getLocalInNum()
+{
+    return (DI_MAX - DI1);
+}
+const uint8_t digitalIO::getLocalOutNum()
+{
+    return drivers::TCA9554PWR::DO_MAX;
+}
+const uint8_t digitalIO::getRemoteInNum()
+{
+    return m_remotes.size() * remoteIO::CH_MAX;
+}
+const uint8_t digitalIO::getRemoteOutNum()
+{
+
+    return m_remotes.size() * remoteIO::CH_MAX;
+}
+
 const uint8_t digitalIO::getOutNum()
 {
-    return drivers::TCA9554PWR::DO_MAX + m_remotes.size() * remoteIO::CH_MAX;
+    return getLocalOutNum() + getRemoteOutNum();
 }
 
 const uint8_t digitalIO::getInNum()
 {
-    return DI_MAX + m_remotes.size() * remoteIO::CH_MAX;
+    return getLocalInNum() + getRemoteInNum();
 }
 
-void digitalIO::digitalWriteLocal(const uint8_t ch, const bool value)
+void digitalIO::writeLocal(const uint8_t ch, const bool value)
 {
     uint8_t retries(0);
     while (retries++ < maxRetries)
     {
         if (m_localOuts.setOut(ch, value))
         {
-            LOG_DEBUG("digitalWriteLocal channel", ch, " status", value ? "True" : "False");
-            break;
+            LOG_DEBUG("writeLocal channel", ch, " status", value ? "True" : "False");
+            return;
         }
-        LOG_ERROR("Failed digitalWriteLocal channel ", ch, " status", value ? "True" : "False");
+        LOG_ERROR("Failed writeLocal channel ", ch, " status", value ? "True" : "False");
     }
 }
 
-void digitalIO::digitalWriteRemote(const uint8_t ch, const bool value)
+void digitalIO::writeLocalPort(const std::vector<bool> &values)
 {
     uint8_t retries(0);
-    const uint8_t selectedRemote(floor(ch / 8.0f));
+    uint8_t decValue(0);
+    for (uint8_t i(0); i < 8; i++) // convert from bits to byte value
+    {
+        if (values[i])
+            decValue |= High << i;
+    }
+    while (retries++ < maxRetries)
+    {
+        if (m_localOuts.setPort(decValue))
+        {
+            LOG_DEBUG("writeLocalPort value", printBoolVec(values).c_str());
+            return;
+        }
+        LOG_ERROR("Failed writeLocalPort value", printBoolVec(values).c_str());
+    }
+}
+
+void digitalIO::writeRemote(const uint8_t ch, const bool value)
+{
+    uint8_t retries(0);
+    const uint8_t selectedRemote(floor(ch / (float)remoteIO::CH_MAX));
     const uint8_t selectedChannel(ch % remoteIO::CH_MAX);
     while (retries++ < maxRetries)
     {
         if (m_remotes[selectedRemote].setOut((remoteIO::channel_t)selectedChannel, value))
         {
-            LOG_DEBUG("digitalWriteRemote remote", selectedRemote, " channel ", selectedChannel, " status", value ? "True" : "False");
-            break;
+            LOG_DEBUG("writeRemote remote", selectedRemote, " channel ", selectedChannel, " status", value ? "True" : "False");
+            return;
         }
-        LOG_ERROR("Failed digitalWriteRemote remote", selectedRemote, " channel ", selectedChannel, " status", value ? "True" : "False");
+        LOG_ERROR("Failed writeRemote remote", selectedRemote, " channel ", selectedChannel, " status", value ? "True" : "False");
     }
 }
 
-const bool digitalIO::digitalReadLocal(const uint8_t ch)
+void digitalIO::writeRemotePort(const std::vector<bool> &values)
+{
+    uint8_t retries(0);
+    while (retries++ < maxRetries)
+    {
+        bool ok(true);
+        for (uint8_t i(0); i < values.size(); i += remoteIO::CH_MAX)
+        {
+            const uint8_t selectedRemote(floor(i / (float)remoteIO::CH_MAX));
+            const std::vector<bool> currValues(values.begin() + i, values.begin() + i + remoteIO::CH_MAX);
+            ok &= m_remotes[selectedRemote].setOutPort(currValues);
+            if (ok)
+            {
+                LOG_DEBUG("writeRemotePort remote", selectedRemote, "values", printBoolVec(values).c_str());
+                continue;
+            }
+            LOG_ERROR("Failed writeRemotePort remote", selectedRemote, "values", printBoolVec(values).c_str());
+            break;
+        }
+        if (ok)
+            break;
+    }
+}
+
+const bool digitalIO::readLocalIn(const uint8_t ch)
 {
     bool value = !digitalRead(ch + DI1); // base pin number in enum, inverted input
-    LOG_DEBUG("digitalReadLocal pin", (ch + DI1), " status", value ? "True" : "False");
+    LOG_DEBUG("readLocalIn pin", (ch + DI1), " status", value ? "True" : "False");
     return value;
 }
 
-const bool digitalIO::digitalReadRemote(const uint8_t ch)
+const bool digitalIO::readLocalOut(const uint8_t ch)
+{
+    bool value(false);
+    uint8_t retries(0);
+    while (retries++ < maxRetries)
+    {
+        if (m_localOuts.readOut(ch, value))
+        {
+            LOG_DEBUG("readLocalOut pin", (ch), " status", value ? "True" : "False");
+            return value;
+        }
+        LOG_ERROR("Failed readLocalOut channel", ch);
+    }
+    return false;
+}
+
+const std::vector<bool> digitalIO::readLocalInPort()
+{
+    std::vector<bool> values(getLocalInNum());
+    for (uint8_t i(0); i < values.size(); i++)
+    {
+        values[i] = readLocalIn(i);
+    }
+    LOG_DEBUG("readLocalInPort values", printBoolVec(values).c_str());
+    return values;
+}
+
+const std::vector<bool> digitalIO::readLocalOutPort()
+{
+    uint8_t retries(0);
+    uint8_t state(0);
+    std::vector<bool> values(getLocalOutNum());
+    while (retries++ < maxRetries)
+    {
+        if (m_localOuts.readPort(state))
+        {
+            for (uint8_t i(0); i < values.size(); i++)
+            {
+                values[i] = (state >> i) & High;
+            }
+            LOG_DEBUG("readLocalOutPort values", printBoolVec(values).c_str());
+            return values;
+        }
+        LOG_ERROR("Failed readLocalOutPort");
+    }
+    values.clear();
+    return values;
+}
+
+const bool digitalIO::readRemoteIn(const uint8_t ch)
 {
     uint8_t retries(0);
     const uint8_t selectedRemote(floor(ch / 8.0f));
@@ -115,10 +283,86 @@ const bool digitalIO::digitalReadRemote(const uint8_t ch)
     {
         if (m_remotes[selectedRemote].getIn((remoteIO::channel_t)selectedChannel, value))
         {
-            LOG_DEBUG("digitalReadRemote remote", selectedRemote, " channel ", selectedChannel, " status", value ? "True" : "False");
+            LOG_DEBUG("readRemoteIn remote", selectedRemote, " channel ", selectedChannel, " status", value ? "True" : "False");
             return value;
         }
-        LOG_ERROR("Failed digitalReadRemote remote", selectedRemote, " channel ", selectedChannel, " status", value ? "True" : "False");
+        LOG_ERROR("Failed readRemoteIn remote", selectedRemote, " channel ", selectedChannel, " status", value ? "True" : "False");
     }
     return false;
-}
\ No newline at end of file
+}
+
+const bool digitalIO::readRemoteOut(const uint8_t ch)
+{
+    uint8_t retries(0);
+    const uint8_t selectedRemote(floor(ch / (float)remoteIO::CH_MAX));
+    const uint8_t selectedChannel(ch % remoteIO::CH_MAX);
+    bool value;
+    while (retries++ < maxRetries)
+    {
+        if (m_remotes[selectedRemote].getOut((remoteIO::channel_t)selectedChannel, value))
+        {
+            LOG_DEBUG("readRemoteOut remote", selectedRemote, " channel ", selectedChannel, " status", value ? "True" : "False");
+            return value;
+        }
+        LOG_ERROR("Failed readRemoteOut remote", selectedRemote, " channel ", selectedChannel, " status", value ? "True" : "False");
+    }
+    return false;
+}
+
+const std::vector<bool> digitalIO::readRemoteInPort()
+{
+    uint8_t retries(0);
+    std::vector<bool> values;
+    values.reserve(getRemoteInNum());
+    while (retries++ < maxRetries)
+    {
+        bool ok(true);
+        for (uint8_t i(0); i < getRemoteInNum(); i += remoteIO::CH_MAX)
+        {
+            const uint8_t selectedRemote(floor(i / (float)remoteIO::CH_MAX));
+            std::vector<bool> remVals(remoteIO::CH_MAX);
+            ok &= m_remotes[selectedRemote].getInPort(remVals);
+            if (ok)
+            {
+                values.insert(values.begin() + values.size(), remVals.begin(), remVals.end());
+                LOG_DEBUG("readRemoteInPort remote", selectedRemote, "values", printBoolVec(remVals).c_str());
+                continue;
+            }
+            LOG_ERROR("Failed readRemoteInPort remote", selectedRemote);
+            break;
+        }
+        if (ok)
+            return values;
+    }
+    values.clear();
+    return values;
+}
+
+const std::vector<bool> digitalIO::readRemoteOutPort()
+{
+    uint8_t retries(0);
+    std::vector<bool> values;
+    values.reserve(getRemoteOutNum());
+    while (retries++ < maxRetries)
+    {
+        bool ok(true);
+        for (uint8_t i(0); i < getRemoteOutNum(); i += remoteIO::CH_MAX)
+        {
+            const uint8_t selectedRemote(floor(i / (float)remoteIO::CH_MAX));
+            std::vector<bool> remVals(remoteIO::CH_MAX);
+            ok &= m_remotes[selectedRemote].getOutPort(remVals);
+            if (ok)
+            {
+                values.insert(values.begin() + values.size(), remVals.begin(), remVals.end());
+                LOG_DEBUG("readRemoteOutPort remote", selectedRemote, "values", printBoolVec(remVals).c_str());
+                continue;
+            }
+            LOG_ERROR("Failed readRemoteOutPort remote", selectedRemote);
+            break;
+        }
+        if (ok)
+            return values;
+    }
+    values.clear();
+    return values;
+}
diff --git a/src/digitalIO.h b/src/digitalIO.h
index 73b8c5c..b17dc2f 100644
--- a/src/digitalIO.h
+++ b/src/digitalIO.h
@@ -34,19 +34,38 @@ public:
     digitalIO(drivers::I2C &i2c, drivers::MODBUS &bus, std::vector<uint8_t> remotes);
     ~digitalIO();
 
-    void digitalIOWrite(const uint8_t ch, const bool value);
-    const bool digitalIORead(const uint8_t ch);
+    void digitalOutWrite(const uint8_t ch, const bool value);
+    void digitalOutWritePort(const std::vector<bool> &values);
+    const bool digitalOutRead(const uint8_t ch);
+    const std::vector<bool> digitalOutReadPort();
+
+    const bool digitalInRead(const uint8_t ch);
+    const std::vector<bool> digitalInReadPort();
+
     void reset();
 
     const uint8_t getOutNum();
     const uint8_t getInNum();
 
-private:
-    void digitalWriteLocal(const uint8_t ch, const bool value);
-    void digitalWriteRemote(const uint8_t ch, const bool value);
+    private:
+    const uint8_t getLocalInNum();
+    const uint8_t getLocalOutNum();
+    const uint8_t getRemoteInNum();
+    const uint8_t getRemoteOutNum();
 
-    const bool digitalReadLocal(const uint8_t ch);
-    const bool digitalReadRemote(const uint8_t ch);
+    void writeLocal(const uint8_t ch, const bool value);
+    void writeLocalPort(const std::vector<bool> &values);
+    void writeRemote(const uint8_t ch, const bool value);
+    void writeRemotePort(const std::vector<bool> &values);
+
+    const bool readLocalIn(const uint8_t ch);
+    const bool readLocalOut(const uint8_t ch);
+    const std::vector<bool> readLocalInPort();
+    const std::vector<bool> readLocalOutPort();
+    const bool readRemoteIn(const uint8_t ch);
+    const bool readRemoteOut(const uint8_t ch);
+    const std::vector<bool> readRemoteInPort();
+    const std::vector<bool> readRemoteOutPort();
 
 private:
     std::vector<uint8_t> m_remoteAddrs;
diff --git a/src/main.cpp b/src/main.cpp
index fff3c47..a33ac04 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -50,6 +50,7 @@ void loop()
   auto seneca = drivers::S50140(bus, conf.m_modbusSenecaAddr);
   auto buzzer = drivers::Buzzer();
   auto led = drivers::Led();
+  delay(500);
   auto io = digitalIO(i2c, bus, {conf.m_modbusRelayAddr});
   // Initialize temperature sensors
   sensors = tmp.getNum();
@@ -63,8 +64,24 @@ void loop()
   std::function<void(const ArduinoJson::JsonDocument &)> mycallback =
       [&io](const ArduinoJson::JsonDocument &doc)
   {
-    io.digitalIOWrite(0, doc["stat"].as<bool>());
-    io.digitalIOWrite(15, doc["stat"].as<bool>());
+    std::vector<bool> v1 = {1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0};
+    std::vector<bool> v2 = {0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1};
+    std::vector<bool> v0(io.getOutNum(), 0);
+
+    LOG_INFO("SET Digital Outputs V1: ", printBoolVec(v1).c_str());
+    io.digitalOutWritePort(v1);
+    delay(100);
+    LOG_INFO("GET Digital Outputs V1: ", printBoolVec(io.digitalOutReadPort()).c_str());
+    delay(2000);
+
+    LOG_INFO("SET Digital Outputs V2: ", printBoolVec(v2).c_str());
+    io.digitalOutWritePort(v2);
+    delay(100);
+    LOG_INFO("GET Digital Outputs V2: ", printBoolVec(io.digitalOutReadPort()).c_str());
+    delay(2000);
+
+    LOG_INFO("GET Digital Inputs: ", printBoolVec(io.digitalInReadPort()).c_str());
+    io.digitalOutWritePort(v0);
   };
 
   //////////////// NETWORK ////////////////
@@ -134,16 +151,32 @@ void loop()
     drivers::S50140::powerinfo_t pinfo = seneca.getAll();
     LOG_INFO("Power Info ==> V:", pinfo.v, "- A:", pinfo.a, "- W:", pinfo.pAct, "- F:", pinfo.f, "- Wh_t:", pinfo.whTot, "- Wh_p:", pinfo.whPar);
 
-    if (io.digitalIORead(0)) // rosso
+    if (io.digitalInRead(0)) // rosso
     {
-      uint8_t regset(seneca.getRegset());
-      uint16_t countStat(seneca.getCounterStatus());
-      LOG_INFO("Register Set: ", regset);
-      LOG_INFO("Counter Status: ", countStat);
-      seneca.resetPartialCounters();
+      std::vector<bool> v1 = {1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0};
+      std::vector<bool> v2 = {0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1};
+      std::vector<bool> v0(16, 0);
+
+      LOG_INFO("SET Digital Outputs V1: ", printBoolVec(v1).c_str());
+      io.digitalOutWritePort(v1);
+      delay(100);
+      LOG_INFO("GET Digital Outputs V1: ", printBoolVec(io.digitalOutReadPort()).c_str());
+      delay(2000);
+
+      LOG_INFO("SET Digital Outputs V2: ", printBoolVec(v2).c_str());
+      io.digitalOutWritePort(v2);
+      delay(100);
+      LOG_INFO("GET Digital Outputs V2: ", printBoolVec(io.digitalOutReadPort()).c_str());
+      delay(2000);
+
+      LOG_INFO("GET Digital Inputs: ", printBoolVec(io.digitalInReadPort()).c_str());
+      delay(2000);
+
+      io.digitalOutWritePort(v0);
     }
+
     delay(100);
-    if (io.digitalIORead(8)) // blu
+    if (io.digitalInRead(8)) // blu
     {
       if (!buzzing)
       {
@@ -160,12 +193,12 @@ void loop()
       LOG_INFO("Buzzing -> ", buzzing ? "True" : "False");
     }
 
-    if (io.digitalIORead(9))
+    if (io.digitalInRead(9))
     { // verde
       conf.resetConfig();
     }
 
-    if (io.digitalIORead(10))
+    if (io.digitalInRead(10))
     { // giallo
       esp_restart();
     }
diff --git a/src/remoteIO.cpp b/src/remoteIO.cpp
index e88806c..c7781f2 100644
--- a/src/remoteIO.cpp
+++ b/src/remoteIO.cpp
@@ -47,7 +47,7 @@ const bool remoteIO::setOutPort(const std::vector<bool> values)
         return false;
     auto lock = m_bus.getLock();
     LOG_DEBUG("Write Port", CH_MAX);
-    return m_bus.writeCoils(m_address, CH_MAX, values);
+    return m_bus.writeCoils(m_address, REG_COILS, values);
 }
 
 const bool remoteIO::getOut(const channel_t ch, bool &value)
@@ -69,7 +69,7 @@ const bool remoteIO::getOutPort(std::vector<bool> &values)
         return false;
     auto lock = m_bus.getLock();
     LOG_DEBUG("Read Port", CH_MAX);
-    return m_bus.readCoils(m_address, REG_COILS, 8, values);
+    return m_bus.readCoils(m_address, REG_COILS, CH_MAX, values);
 }
 
 const bool remoteIO::getIn(const channel_t input, bool &value)