Solar Peltier Mini Air Conditioner Experiment
Testing a Peltier cooler with a 100W solar panel using two BME280 sensors, an ESP8266, a DS18B20 temperature sensor and Google Charts I’ve had an interest in thermoelectric…
ESP8266
ESP8266 Fan Speed Control with DS18B20 Temperature Sensor
This simple project controls the speed of a fan based on the reading from a temperature sensor. The video below shows the fan speed changing when the temperature sensor is moved…
ESP8266 Sending Data Over Wi-Fi to another ESP8266
A simple guide to sending data from one ESP8266 to another over Wi-Fi using an ad-hoc, device to device network, without using a wifi router. The ESP8266WebServer library allows…
ESP8266 Built-in OLED – Heltec WiFi Kit 8
A set-up guide for the Heltec WiFi Kit 8 development board (an ESP8266 with built-in OLED display). Follow the easy steps below to get up and running with this board…
ESP8266 with two BME280 Sensors over SPI
I had a problem with the wiring on this one. With SPI you use the same pins for SCLK (SCL pin on the BME280 boards) , MOSI (SDA pin) and MISO (SDO pin) and then each SPI sensor…
ESP8266 and BME280 Temp, Pressure and Humidity Sensor over SPI
As part of a bigger project to measure temperature and humidity I’ve set up the NodeMcu ESP8266 (ESP12E) with a GY BME280 as below. I’m using ‘Software’…