Wemos mini and OLED shield bitcoin ticker

In this example we will display the price in USD of 1 bitcoin, the data is taken from coindesk's API and displayed on an...

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...

Wemos and DHT11 example in Micropython

In this example we look at a DHT11 example in Micropython for an ESP8266. Once again we use uPyCraft and again we use Wemos...

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...

VL53L0X Time-of-Flight sensor and ESP8266

The VL53L0X is a new generation Time-of-Flight (ToF) laser-ranging module housed in the smallest package on the market today, providing accurate distance measurement whatever...

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...

BH1750FVI Ambient Light Sensor example

The BH1750FVI is an digital Ambient Light Sensor IC for I2C bus interface. This IC is the most suitable to obtain the ambient light...

The Wemos PIR shield

A new wemos shield and this time its based on a  passive infrared sensor An overview of a PIR A passive infrared sensor (PIR sensor) is...

ESP8266 and Stepper motor example

In this example we will show a basic stepper motor example, we use a driver board that can be bought on many sites which...

ESP8266 and OLED Micropython example

In this example we show an example written in Micropython using the uPycraft IDE. This time we will be trying out the Wemos OLED...

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 VCNL4040 layout

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...

Using a 74HC595 shift register with the Wemos

Sometimes in your projects you simply do not have enough I/O lines available, take for example a lot of the multiple LED examples, these...

Wemos and TMP36 example

The TMP35, TMP36, and TMP37 are low voltage, precision centigrade temperature sensors. They provide a voltage output that is linearly proportional to the Celsius...

TMP175 digital temperature sensor and ESP8266 example

Another sensor or module to cross our path, this time we will look at the TMP175 digital temperature sensors We will connect one of these up...

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 ....