November 2023 – Adrian’s electronics blog

3 min 0

General

Multiplexing 7 segment displays with a shift register and transistors

admin
19/11/2023

In this example I will show you how to multiplex a 7 segment LED display from a microcontroller such as an Arduino without placing too much load on the microcontroller pins as I have seen in some other examples. Quite a few tutorials I’ve seen are not really good practice for electronics design – some […]

3 min 0

General

A digital scale controller for HX711 modules up to 99.999Kg

admin
11/11/2023

I was experimenting with load cells for a commercial project and thought I’d share one of the prototypes I built to test HX711 load cell modules. It’s built on Veroboard but I designed a PCB for it however never got it manufactured as you can buy one on AliExpress for around 3 Euros or a […]

3 min 13

Projects

Build a large 6 digit clock using 1.8″ + 0.8″ LED displays and TPIC6B595 shift registers

admin
10/11/2023

The project I recently bought a few LED displays as a job lot which were parts for fruit machines; the type you see in the local pub and after testing them I found that they had a nice bright red / orange colour to them and decided to use them for a large clock project. […]

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