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...
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...
ESP8266 and DS18b20 sensor readings displayed on a web server
In this example we will connect a Wemos compatible DS18B20 shield to a Wemos Mini and display a page on a web server. This...
ESP8266 and SHt30 shield example
This time we look at the SHT30 shield from Wemos. Now there are other versions of this board as well, this is the official...
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...
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...
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...
Si1145 sensor and ESP8266 example
Another sensor reaches the desk, this time it is a Si1145 sensor, we will connect it to an ESP8266 and test it out
The Si1145/46/47...
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...
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...
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 ML8511 example
The ML8511 measures the amount of ultra violet rayses contained in sunlight, and it is used for the equipment which displays the suntan by...
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...
MAX30102 pulse and heart-rate monitor sensor and ESP8266
The MAX30102 is an integrated pulse oximetry and heart-rate monitor biosensor module. It includes internal LEDs, photodetectors, optical elements, and low-noise electronics with ambient...
Wemos HMC5883L example
The Honeywell HMC5883L is a surface-mount, multi-chip module designed for low-field magnetic sensing with a digital interface for applications such as lowcost compassing and...
Wemos Mini and L3GD20 sensor
The L3GD20 is a low-power three-axis angular rate sensor. This is the module I bought for reference
More information can be found at http://www.st.com/content/st_com/en/products/mems-and-sensors/gyroscopes/l3gd20.html about the...