Monthly Archives: May 2019

Compact Clock using TM1637 LED Module

In all the time I’ve been been messing around with PIC microcontrollers I’ve never done a simple 7-Segment LED clock, and it’s something I’ve always wanted to do.

For the Record Time Redux project I’m currently working on I needed to design a control board for it. I started working on a PCB layout and then thought, why not make the board so it could also fit on the back of the 7-Segment LED module. So I came up with the board shown here, it fits to the back of the 0.56″ RobotDyn 4-digit clock module (see here) and turns it into a compact USB powered LED clock.

I fitted the assembled boards into a Hammond translucent red 1591 style case (size 100 x 50 x 21mm )

Schematic and PCB layout can be found on the EasyEDA website here.

The source code is fully working, just need to get some time to write up a quick projects page and I’ll make it available then.

Update: 13/06/2019 – Full project now published here

Revised PCB for Power MOSFET RGB project

There is now a new PCB design for the original Power MOSFET RGB LED PWM Driver #106 project.

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Record Clock Redux

Way back in the 80’s – 1986 to be precise since I dated one of the PCBs – I made a ‘Record Time’ clock and it has lived in my parents kitchen ever since. Amazingly it’s still working 34 years later.

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