PAJ7620 gesture sensor and ESP8266

The PAJ7620 integrates gesture recognition function with general I2C interface into a single chip forming an image analytic sensor system. It can recognize 9...

The Wemos IR controller shield

In this small article we take a look at the IR controller shield, this is a shield which can act as an IR receiver...

PCF8575 I/O expander and ESP8266 examples

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 5.5-V VCC operation. The PCF8575 device provides general-purpose remote I/O...

ESP8266 and RFID-RC522 module example

In this example we will connect an RFID-RC522 module and connect to a Wemos Mini The microcontroller and card reader uses SPI for communication ....

A quick look at the Wemos TFT 2.4 Touch Shield

This is a 2.4 inch TFT shield for a Wemos, its a large shield thats more than twice the size of a D1 mini...

Wemos and 4067 example

The 4067 was one of the IC's that I wanted to connect up to various microcontrollers as it looked extremely useful, here is a quick...

Max7219 8×8 LED matrix example

The MAX7219/MAX7221 are compact, serial input/output common-cathode display drivers that interface microprocessors (µPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph...

ESP8266 and DS18b20 sensor readings displayed on a web server

In this example we will connect a Wemos compatible DS18B20 shield to a Wemos Mini and display a page on a web server. This...

Wemos and Soil Moisture Sensor example

In this article, we are going to interface a Soil moisture sensor with an ESP8266. This sensor measures the volumetric content of water inside...

MCP4725 Digital-to-Analog Converter example

MCP4725 is a single channel, 12-bit, voltage output Digital-to-Analog Converter with integrated EEPROM and an I2C Compatible Serial Interface. Again the easiest way to interface...

A look at various ESP specific APIs

  Description Some ESP-specific APIs related to deep sleep, RTC and flash memories are available in the ESP object. These may be useful, we have already...

ESP8266 and CJMCU-1010 capacitive touch module example

In this example we look at the CJMCU-1010 module - this is based on the AT42QT101x The AT42QT101x Single Key capacitive touch controller family provides an easy...

Wemos Mini WS2812b example

The WS2812 family is a intelligent control LED light source that the control circuit and RGB chip are integrated in a package of 5050...

Wemos and LDR example

In this example we connect a photoresistor to an Arduino, the value read from the photoresistor corresponds to the amount of light present. The...

ESP8266 and Ambient light Shield example

This was another new shield for the Wemos called the Ambient light Shield , this time its based around the BH1750FVI digital Ambient Light Sensor Lets...

Using a MMC5603 Triple-axis Magnetometer sensor with an ESP8266

In this article we look at a Triple-axis Magnetometer, the MMC5603 and connect it to an ESP8266 board - a Wemos D1 Mini pro...