As promised we said we would try out some of the Wemos Mini shields with the MH ET LIVE ESP32 MINI KIT. Here is a picture of the DH11 shield. …
-
-
The MH-ET LIVE MiniKit is an ESP32 board which has the advantage of being able to utilise the various shields that have been developed for the Wemos Mini (ESP8266) module. …
-
SHT21, the new humidity and temperature sensor of Sensirion is about to set new standards in terms of size and intelligence: Embedded in a reflow solderable Dual Flat No leads …
-
The TCS3200 and TCS3210 programmable color light-to-frequency converters that combine configurable silicon photodiodes and a current-to-frequency converter on a single monolithic CMOS integrated circuit. The output is a square wave …
-
This is another example using a sensor from the 37 sensor kit, this time we use the one called the KY-033 Hunt sensor module. A more correct name would be …
-
AM2301 output calibrated digital signal. It applys exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability. Its sensing elements is connected with 8-bit single-chip computer. Every sensor of …
-
In this example we will connect an RFID-RC522 module and connect to an ESP32 Wemos LOLIN32 The microcontroller and card reader uses SPI for communication . The card reader and …
-
In this article, we are going to interface a Soil moisture sensor with an ESP8266. This sensor measures the volumetric content of water inside the soil and gives us the …
-
In this example we connect an SD card to our ESP32, we will log analog readings to a file on the SD card. Here is our micro sd module Here …
-
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. The data is output in …
-
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 and PORTB). The MCP23017 can …
-
In this example we will interface to an I2C LCD using our ESP32. Now these I2C LCD’s consist of 2 parts usually an HD44780 16×2 LCD and an I2C backpack which …