Wemos and Max6675 example
In this example we take a look at the MAX6675 Cold-Junction-Compensated K-Thermocouple-to-Digital Converter
The MAX6675 performs cold-junction compensation and digitizes the signal from a type-K thermocouple....
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...
Control a Wemos using an application on your PC
In this example we will control an RGB led connected to our Wemos Mini from an application running on our PC. In this example...
Wemos Mini and LIS3MDL magnetic field sensor example
In this article we look at another sensor - this time its the LIS3MDL which is a 3-axis MEMS magnetic field sensor, digital output,...
VEML6075 ultraviolet (UV) light sensor and ESP266
The VEML6075 senses UVA and UVB light and incorporates photodiode, amplifiers, and analog / digital circuits into a single chip using a CMOS process....
Wemos and DS3231 RTC example
The DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.
The device incorporates a battery...
Wemos Infrared receiver example
In this example we look at how to connect an IR Reciever. Generally, they require Vcc(5v) but I found this to work well with 3v3, GND...
MQ3 Gas Sensor example
The MQ3 Gas Sensor module is useful for gas leakage detection (in home and industry). It is suitable for detecting Alcohol, Benzine, CH4, Hexane, LPG,...
ESP8266 and vibration sensor module
In this example we connect a vibration motor module to an ESP8266. This is the type of motor that you could find in a...
ESP8266 and BMP280 sensor example
BMP280 is an absolute barometric pressure sensor especially designed for mobile applications. The sensor module is housed in an extremely compact package. Its small...
ESP8266 and PIR example in Micropython
In this example we look at a PIR example in Micropython for an ESP8266. Once again we use uPyCraft and again we use Wemos...
Wemos and MMA7455L example
The MMA7455L is a Digital Output (I2C/SPI), low power, low profile capacitive micromachined accelerometer featuring signal conditioning, a low pass filter, temperature compensation, self-test,...
Wemos mini and US-026 Ultrasonic Detector example
In this article we look an ultrasonic module that works well with a Wemos Mini in that it will work with 3.3v.
The US-026 is...
Interfacing an AD keypad module to your Wemos
I purchased this module as part of a microcontroller kit, its an interesting little module as it has 16 buttons but with only 1 I/O...
Wemos and reed switch example
The reed switch is an electrical switch operated by an applied magnetic field. It consists of a pair of contacts on ferrous metal reeds...
Wemos OLED shield example
In this example we look at another terrific little low cost shield for the Wemos mini, this time its the OLED shield. Lets look...