Wemos and LX1972 light sensor example
The LX1972 is a low cost silicon light sensor with spectral response that closely emulates the human eye. Patented circuitry produces peak spectral response...
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...
3 channel tracking sensor example
This Tracking Sensor for Arduino can detect the white lines in black and black lines in white. This particular module has 3 sensors
Using infrared...
ESP8266 and GY-21P module example
This module combines a BMP280 sensor and an SI7021 sensor. The on-board BMP280+SI7021 sensor measures atmospheric pressure from 30kPa to 110kPa as well as...
ESP8266 and BMA400 acceleration sensor example
In this article we look at another acceleration sensor - this time its the BMA400
Lets take a look at the sensor and its features
Description
The...
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 MLX90393 magnetic field sensor example
The MLX90393 magnetic field sensor can be reprogrammed to different modes and with different settings at run-time. The sensor offers a 16-bit output proportional...
Goouuu-S1 ESP8266 RGB led examples
In a previous post we looked at the Goouuu-S1 ESP8266 , on the board you will have seen that there is an RGB led
The board uses...
Wemos and dust sensor example
Sharp's GP2Y1010AU0F is an optical air quality sensor it is designed to sense dust particles. An infrared emitting diode and a phototransistor are diagonally...
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 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...
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...
Wemos and TEMT6000 light sensor
TEMT6000X01 ambient light sensor is a silicon NPN epitaxial planar phototransistor in a miniature transparent 1206 package for surface mounting. It is sensitive to...
Wemos Mini and a PCF8574
The PCF8574 is an 8 bits I/O port expander that uses the I2C protocol. Using this IC, you can use only the SDA and...
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...
Wemos Mini and PIR sensor example
In this example we connect a PIR module to a Wemos Mini. A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared...