graham22

I2CScan

I2C test utility

modbus-esp8266

A library that allows your ESP8266/ESP32 to communicate via Modbus protocol, acting as a master, slave or both. Supports IP via wireless network (Modbus IP) and RTU via Serial line (Modbus RTU).

ReflowOven

arduino nano based reflow oven

ESPThermostat

ESP32 thermostat

graham22

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graham22.github.io

OscCal

Tool to help determine the value for OSCCAL for the Arduino AtTiny

Spoon-Knife

This repo is for demonstration purposes only.

SunFinder

Arduino sample to display sun's azimuth, elevation

Tasmota

Alternative firmware for ESP8266 with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at