TMP102 digital sensor and ESP8266 example
In this article we look at the TMP102 digital sensor and we will connect it up to an ESP8266
The TMP102 device is a digital...
ESP8266 and MMA8452 accelerometer example
In this example we will connect a MMA8452Q accelerometer to an ESP8266 - as usual it's a Wemos Mini
Lets look at the sensor
The MMA8452Q is a...
ESP8266 and BMM150 digital geomagnetic sensor example
In this article we look at a digital geomagnetic sensor - this time its the BMM150 and as usual we will connect this to...
Wemos Mini and HC-SR04 ultrasonic sensor
The HC-SR04 ultrasonic sensor uses sonar to determine distance to an object like bats or dolphins do. Ultrasonic ranging module HC-SR04 provides 2cm - 400cm...
Connecting a basic Touch sensor
This example shows how to interface a basic touch sensor to our Wemos Mini (esp8266), this sensor came as part of a kit of...
MLX90615 infrared thermometer and ESP8266 example
The MLX90615 is a miniature infrared thermometer for non-contact temperature measurements. Both the IR sensitive thermopile detector chip and the signal conditioning ASIC are...
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....
ESP8266 and MCP23017 example
The is a 16-bit, general purpose parallel I/O port expander for I2C bus applications.
The 16-bit I/O port functionally consists of two 8-bit ports (PORTA...
Sampling analog data
Sampling sata is particularly useful for analog sensors such as an LDR or a thermistor. Another good example is one of the MQ gas...
A look at SHA-1 and ESP8266
Description
In cryptography, SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function which takes an input and produces a 160-bit (20-byte) hash value known...
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...
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...
ESP8266 and Si7021 temperature sensor example
The Si7021 I2C Humidity and Temperature Sensor is a monolithic CMOS IC integrating humidity and temperature sensor elements, ...
Wemos MCP9808 digital temperature sensor example
ESP8266 and MCP9808 digital temperature sensor example
The MCP9808 digital temperature sensor converts temperatures between -20°C and +100°C to a digital word with ±0.5°C (max.)...
ESP8266 and LPS331AP pressure sensor example
In this article we look at the LPS331AP pressure sensor and as usual we connect it to a Wemos Mini and the example will...
TSL2561 Luminosity Sensor example
The TSL2560 and TSL2561 are second-generation ambient light sensor devices. Each contains two integrating analog-to-digital converters (ADC) that integrate currents from two photodiodes. Integration...