The circuit is subdivided into two parts, a control part and a measurement part. The measurement part consists of a 12 V power supply forwarded to four darlington arrays (ULN2003APW), which are ...
ITEAD has sent us samples of the Open Nextion ONX3248G035 and ONX2432G028 ESP32-S3 HMI displays for review. Open Nextion is a new product line that differs from the original Nextion HMI family, which ...
The I2CKeyPad library implements the reading of a 4x4 keypad by means of a PCF8574. Smaller keypads, meaning less columns or rows (4x3) can be read with it too. Since 0.3.2 the library allows a 5x3, ...
It’s the moment you hard-core hardware nerds have been waiting for: the reveal of the 2025 Hackaday Supercon Communicator Badge. And this year, we’ve outdone ourselves, but that’s thanks to help from ...
Ah, the age-old problem. You’ve got one oscilloscope, but five engineers want to use it; one telephone line, but three people want to make calls; 20 LEDs, but only eight GPIOs remain on your ...
TM1637 is a kind of LED (light-emitting diode display) drive controller special circuit with a keyboard scan interface. It is internally integrated with MCU digital interface, data latch, and LED high ...
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