Preview – Omnidirectional I²C Microphone

 INMP441, if you can believe the specifications, a highly accurate microphone for the I²C bus. For around 3€ on the usual platforms. What is a preview: Since I'm increasingly losing track of the ordered hardware, I'll write a short preview after ordering. Then, when I get to the hardware, I'll do the corresponding...

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Preview – ESP-WROOM-32 Rev1 Breadboard Adapter Board 

An ESP32 with an adapter board for a breadboard. It needs to be soldered together by yourself and is available for around €5 on the usual platforms. What is a preview: Since I'm increasingly losing track of the hardware ordered, I'll write a small preview after ordering. When I get to the hardware, I will then...

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Preview – 7x9CM Prototyping Soldering Board for ESP8266, ESP-12E, ESP-12F, ESP32

Soldering board for soldering an ESP module for around €1 from fast Ali. What is a preview: As I am increasingly losing track of the ordered hardware, I will write a short preview after ordering. When I get to the hardware, I will replace the corresponding preview with the actual post. This way, you will receive…

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Preview – Keyestudio ESP32-IO Shield

A prototype board for ESP32 development boards for around £7 from the speedy Ali. The add-on board is intended for the Keystudio version but could also be compatible with others. What is a preview? As I'm increasingly losing track of the hardware ordered, I'll write a short preview after ordering. When I then get to the…

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D1 Mini Shield – RGB LED

7 RGB LEDs arranged in a circle, each LED can display 24-bit RGB colours and each LED can be switched individually. Facts 7 RGB LEDs arranged like a flower, LED individually controllable. Description Name D1 ESP32 C3 S2 Signal pin (pre-assigned) D4 GPIO2 16 6 16 Circuit diagram Compatibility D1 Type Compatible Reason if not D1 mini Yes D1 ...

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D1 Mini Shield – PIR (Motion Sensor)

This add-on board has a small motion sensor on board. The sensor has a slight delay and is connected to the D3 pin of the D1 Mini on delivery. Facts Motion sensor Pin selection possible via jumper on the back Description Name D1 ESP32 S2 C3 Motion detected Data D3 (Default) 17 18 7 Built-in LED LED 2 2 2 7! …

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D1 Mini Shield – HR8833 Motor

Expansion board for the D1 Mini, compatible with a driver for two motors. Facts Description Name Pin I²C Clock SCL 5 (D1) I²C Data SDA 4 (D2) Motor A Connection 1 1A Motor A Connection 2 2A Motor B Connection 1 1B Motor B Connection 2 2B External Voltage VM (3 -10V) VM External Voltage GND GND I²C …

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D1 Mini Shield – AT8870 Motor

Motor control board for controlling two motors (6.6V – 38V) via the I²C bus. Facts: Supply voltage 6.6V – 38V. Maximum continuous current 2A (briefly up to 3.6A). Controls: Forward/Reverse (speed), Stop/Brake. Description: Name, Pin, I²C Clock, SCL, 5 (D1), I²C Data, SDA, 4 (D2), Motor A Connection 1, 1A, Motor A Connection 2, 2A, Motor...

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D1 Mini Shield – SG30 Air Quality Measurement

This sensor board features an SG30 sensor that detects organic compounds and H2 in the air and can calculate the CO2 value from them (not a true CO2 sensor). **Facts** * I2C Interface * TVOC Measurement: 0-60000 ppb * eCO2 Measurement: 400-60000 ppm * Sensor can be detached from the board and operated via a socket * Φ2mm mounting holes **Description** Name: D1 ESP32 S2 C3…

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D1 Mini Shield – I2C Connector

Additional board with three connectors for connecting a TFT display, the I2C bus and an I/O device. Facts TFT socket I²C socket I/O socket TFT socket Connection Pin Description Name D1 ESP32 S2 C3 1 Backlight TFT_LED NC 2 Ground GND GND 3 Reset TFT_RST RST 4 Register Select TFT_DC D8 15 5 A5 / 5 …

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