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 Micropython I2C Scanner
This is a simple very short code example in which we show how to create a basic I2CScanner in Micropython using the uPyCraft IDE...
Wemos and L9110 Fan module example
In this example we connect an Arduino to a L9110 fan module.
The L9110 is anASIC device control and drive motor design two-channel push-pull power...
Wemos Mini and a TTP223 Capacitive Touch Sensor
In this example we will connect a TTP223 Capacitive Touch Sensor to our Wemos Mini. The TTP223 is a touch pad detector IC which offers 1...
CCS811 digital gas sensor and ESP8266 example
CCS811 is a low-power digital gas sensor solution, which integrates a gas sensor solution for detecting low levels of VOCs typically found indoors, with...
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...
Using a STTS22H temperature sensor with an ESP8266
In this article we look at a temperature sensor, the STTS22H sensor from ST and connect it to an ESP8266 board
Sensor Information
The STTS22H is...
SHT20 temperature and humidity sensor and ESP8266
The SHT2x series consists of a low-cost version with the SHT20 humidity sensor. the SHT2x provides calibrated, linearized sensor signals in digital, I2C format....
SHTC1 digital humidity sensor and ESP8266 example
In this article we look at another digital humidity sensor - this time its the SHTC1 and we will connect it to a Wemos...
ESP8266 and HDC1080 humidity and temperature sensor
The HDC1080 is a digital humidity sensor with integrated temperature sensor that provides excellent measurement accuracy at very low power. The HDC1080 operates over...
TSL2591 light-to-digital converter and ESP8266 example
In this article we look at another light-to-digital converter - this time its the TSL2591 and we will connect it to a Wemos Mini
First...
VCNL4040 Proximity Sensor and ESP8266 example using the Arduino IDE
In this article we look at a VCNL4040 Proximity Sensor and we will connect it to a Wemos Mini
First lets look at the sensor
The...
WS2812B RGB SHIELD for WeMos D1 mini examples
In this example we look at a new wemos shield (for us anyway), this is called the RGB shield and as you might expect...
ADS1115 analog-to-digital converter and ESP8266
The ADS1115 device is a precision, low-power, 16-bit, I2C-compatible, analog-to-digital converters (ADCs) offered in an ultra-small, leadless, X2QFN-10 package, and a VSSOP-10 package. The...
Using a LTR-303 Ambient Light sensor with an ESP8266
In this article we look at an Ambient Light sensor, the LTR-303 and connect it to an ESP8266 board - a Wemos D1 Mini...
Wemos and Barometric Pressure Shield example
In this article we look at a relatively new shield for the Wemos/Lolin products - this is a Barometric Pressure shield based on a HP303B. Here...