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peltier-aircon-experiment-900.jpg
  • Electronics
  • ESP8266
  • + 1 more
    • Solar

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…

  • Published: March 21, 20194:31 pm
  • Author WordBot
34042
5a-mppt-controller.jpg
  • Electronics
  • Solar

5A Lithium MPPT Solar Charger – Set Up Instructions

Instructions for setting up the MPPT-V08A Lithium Solar Charge Controller with CN3722 The information in the listings for these modules is virtually incomprehensible so after…

  • Published: August 26, 20183:05 pm
  • Author WordBot
68646
temperature-sensor-fan-nodemcu.jpg
  • Electronics
  • 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…

  • Published: August 19, 20183:24 pm
  • Author WordBot
2492612
to-show-sections.jpg
  • Arduino IDE
  • Arduino Uno
  • + 1 more
    • Electronics

Arduino Uno with NEO GPS and OLED

This project displays the latitude and longitude from a GPS sensor on an OLED display using the I2C protocol. In the video below you can see a splash screen is displayed with some…

  • Published: September 14, 20175:50 pm
  • Author WordBot
1349832
pir-and-mosfet-featured-e1504537854760.jpg
  • Electronics

PIR Movement Detector with a 3v Mosfet Relay

The 3.3v output from a PIR movement detector doesn’t have enough current to energise a mechanical relay. With a little modification it is possible to make it work with a…

  • Published: September 9, 201711:13 am
  • Author WordBot
1565
esp2866-bme280x2-1.jpg
  • Electronics
  • ESP8266

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…

  • Published: August 26, 201711:53 am
  • Author WordBot
106584
esp2866-bme280-2.jpg
  • Electronics
  • ESP8266

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’…

  • Published: August 23, 20172:40 pm
  • Author WordBot
300799

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