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...
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, ...
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...
I2C Scanner
This is a basic example which will display via the serial monitor the address of any devices connected to your Wemos.
Its the same as...
MLX90614 infrared thermometer example
The MLX90614 is a non-contact infrared thermometer with a measurement range from -70 to +380 degree Celsius. Just connect the four leads to your...
ESP8266 and LSM6DS3 accelerometer and gyroscope example
The LSM6DS3 is a system-in-package featuring a 3D digital accelerometer and a 3D digital gyroscope performing at 1.25 mA (up to 1.6 kHz ODR)...
Wemos and basic TEA5767 example
The TEA5767HN is a single-chip electronically tuned FM stereo radio for low-voltage applications with fully integrated Intermediate Frequency (IF) selectivity and demodulation. The radio...
Wemos and MAX44009 ambient light sensor example
The MAX44009 ambient light sensor features an I²C digital output that is ideal for a number of portable applications such as smartphones, notebooks, and...
Wemos Mini and MMA8451 accelerometer
The MMA8451 is a low-power accelerometer with 14 bits of resolution, with the following features:
Embedded functions with flexible user-programmable options, configurable to two interrupt...
Read and write to the eeprom on the ESP8266
Description
The ESP8266 has 512 bytes of internal EEPROM, this could be useful if you need to store some settings, such as an IP address...
Wemos and PCF8563 RTC example
The PCF8563 is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption. A programmable clock output, interrupt output, and voltage-low detector...
LTR390 UV Light Sensor and ESP8266 example using the Arduino IDE
In this article we look at a LTR390 UV Light Sensor and we will connect it to a Wemos Mini
First lets look at the...
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....
OPT3001 Digital Ambient Light Sensor and ESP8266 example
In this example we will connect an OPT3001 to a Wemos, this sensor measures light intensity - so you can easily create a lux...
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...