re-upload of v2.3

Author: Vino Rodrigues

Arduino/01_Blink/01_Blink.ino

@@ -0,0 +1,36 @@
+/*
+  ESP8266 Blink by Simon Peter
+  Blink the blue LED on the ESP-01 module
+  This example code is in the public domain
+
+  The blue LED on the ESP-01 module is connected to GPIO1
+  (which is also the TXD pin; so we cannot use Serial.print() at the same time)
+
+  Note that this sketch uses LED_BUILTIN to find the pin with the internal LED
+*/
+
+void setup() {
+  pinMode(LED_BUILTIN, OUTPUT);     // Initialize the LED_BUILTIN pin as an output
+
+  Serial.begin(115200);
+  while (!Serial);  // Leonardo: wait for serial monitor
+  Serial.print("Starting... ");
+  Serial.print(LED_BUILTIN);
+  Serial.print("... ");
+
+  Serial.println();
+}
+
+// the loop function runs over and over again forever
+void loop() {
+  digitalWrite(LED_BUILTIN, LOW);   // Turn the LED on (Note that LOW is the voltage level
+  // but actually the LED is on; this is because
+  // it is active low on the ESP-01)
+  delay(333);                      // Wait for a second
+  digitalWrite(LED_BUILTIN, HIGH);
+  delay(333);
+  digitalWrite(LED_BUILTIN, LOW);
+  delay(333);
+  digitalWrite(LED_BUILTIN, HIGH);  // Turn the LED off by making the voltage HIGH
+  delay(2000);                      // Wait for two seconds (to demonstrate the active low LED)
+}

Arduino/02_Scan_I2C/02_scan_i2c.ino

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+// --------------------------------------
+// Modified from: http://playground.arduino.cc/Main/I2cScanner
+// i2c_scanner
+
+#include <Wire.h>
+
+#define SDA_PIN 0
+#define SCL_PIN 2
+
+void setup() {
+  Wire.begin(SDA_PIN, SCL_PIN);
+
+  Serial.begin(57600);
+  while (!Serial);  // Leonardo: wait for serial monitor
+  Serial.println("I2C Scanner (ESP-01)");
+}
+
+
+void loop() {
+  byte error, address;
+  int nDevices;
+
+  Serial.println();  Serial.println();
+  Serial.println("Scanning...");
+
+  nDevices = 0;
+  for(address = 1; address <= 127; address++ ) {
+
+    // delay(1);
+
+    // The i2c_scanner uses the return value of
+    // the Write.endTransmisstion to see if
+    // a device did acknowledge to the address.
+    Wire.beginTransmission(address);
+    error = Wire.endTransmission();
+
+    if (error == 0) {
+
+      nDevices++;
+
+      Serial.print("[");
+      Serial.print(nDevices);
+      Serial.print("] Address = ");
+      Serial.print(address, DEC);
+      Serial.print(" (0x");
+      if (address < 16) Serial.print("0");
+      Serial.print(address, HEX);
+      Serial.println(")");
+
+
+    } else if (error == 4) {
+
+      Serial.print("Error @ (0x");
+      if (address<16) Serial.print("0");
+      Serial.print(address, HEX);
+      Serial.println(")");
+
+    }
+  }
+
+  if (nDevices == 0)
+    Serial.println("No I2C devices found.");
+  else {
+      Serial.print("Found ");
+      Serial.print(nDevices);
+      Serial.print(" I2C device");
+      if (nDevices > 1) Serial.print("s");
+      Serial.println(".");
+  }
+
+  delay(10000);  // wait 5 seconds for next scan
+}

Arduino/03_Relay_Test/03_Relay_Test.ino

@@ -0,0 +1,73 @@
+
+/*
+  A. Select "Generic ESP8622 Module" board
+  1. Output to serial (for debug)
+  2. Blink I2C/Qwiic Relay, @see https://www.smart-prototyping.com/Zio-Qwiic-Relay
+*/
+
+#include <Wire.h>
+
+#define SDA_PIN 0
+#define SCL_PIN 2
+// const int16_t I2C_MASTER = 0x07;
+const int16_t I2C_RELAY = 0x18;
+
+
+void setup() {
+  Serial.begin(115200);
+
+  while (!Serial);  // Leonardo: wait for serial monitor
+
+  Serial.print("Starting... ");
+
+  Wire.pins(SDA_PIN, SCL_PIN);
+  Wire.begin();  // join i2c bus with sda = 0, scl = 2
+
+  Serial.println();
+}
+
+
+void readFromSlave() {
+  // if data size is available from nodes
+}
+
+// the loop function runs over and over again forever
+void loop() {
+
+  Wire.beginTransmission(I2C_RELAY);
+  Wire.write(0x01);  // on
+  Wire.endTransmission();
+
+  delay(1000);
+
+  // ***
+
+  Wire.beginTransmission(I2C_RELAY);
+  Wire.write(0x00);  // off
+  Wire.endTransmission();
+
+  delay(1000);
+
+  Wire.beginTransmission(I2C_RELAY);
+  Wire.write(0x04);
+  Wire.endTransmission();
+
+  delay(1);
+
+  // ***
+
+  Wire.requestFrom(I2C_RELAY, 2);
+
+  int x = Wire.available();
+  Serial.print(x);
+
+  if (x >= 2) {
+    int v_maj = Wire.read();
+    int v_min = Wire.read();
+
+    Serial.print("Version ");
+    Serial.print(v_maj);
+    Serial.print(".");
+    Serial.print(v_min);
+  }
+}

CHANGELOG.md

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+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+[[[[[ **This project is in WIP state.** ]]]]]
+
+## [Unreleased]
+
+### Added
+
+- Rebuild of PlatformIO examples
+
+### Removed
+
+- Sub projects removed (and added to their own GitHub projects)
+  * [arduino-esp-01-dev-board](https://github.com/Tecsmith/arduino-esp-01-dev-board)
+  * [arduino-pro-micro-screw-terminal](https://github.com/Tecsmith/arduino-pro-micro-screw-terminal)
+  * [arduino-wemos-d1-screw-terminal](https://github.com/Tecsmith/arduino-wemos-d1-screw-terminal)
+  * arduino-emc2101 *(deleted)*
+
+### Changed
+
+- Arduino examples renamed.  These will stay, but not be maintained or added on as PlatformIO is the preferred environment.
+
+## [2.3.0] - 2020-12-17
+
+### Added
+
+- Initial AMC6820 and SMBus libraries
+- WIP PlatformIO code to test IC integration
+
+### Changed
+
+- Realized that JP2 = A0 and JP3 = A1 could lead to confusion, renamed all JP's (with J0 = A0 & J1 = A1)
+- Created expanded solder pads on Optional Temp. Sensor to allow for horizontal cable soldering.
+- Moved Qwiic connectors up by 25mil to allow better clearance of mounting screws.
+- Issue identified with JLCPCB validation
+    + C7 (Optional Temp. Sensor capacitor) was the incorrect footprint, changed from 0402 to 0805.  This is a breaking error, however, since sensor is optional will not impact development of firmware.
+    + Q2, Q3, Q4 (Red LED inversion transistors) were the incorrect footprint.  Non-breaking.  Changed to SOT23-3. Moved the route airwires to accommodate.
+
+## [2.2.0] - 2020-12-05
+
+### Changed
+
+- Fix for the Qwiic connector being oriented the wrong way
+
+## [2.1.0] - ?
+
+- Unreleased
+
+## [2.0.0] - 2020-11-02
+
+### Added
+- Initial release (and first production run with [JLCPCB](https://jlcpcb.com/))