Building the Whiteboard - Boldport Club project #22 - a breadboard enhancer featuring power supply and prototyping areas.
Here’s a quick demo running a CD4060 ripple counter on the breadboard..
The whiteboard is a neat little “breadboard enhancer”. It includes:
- a prototyping shroud for a mini breadboard, including 4 LEDs and various pads for other components and connections
- a variable power supply unit, based on the LM317
- a CR2032 coin cell power supply unit
- a 6-pin DIP adapter for 3 x 0805/1206 SMD components (e.g. LEDs, diodes or passives) or 2 x SOT23 SMD components (e.g. transistors/FETs)
The project includes the following components
|1x||170-point breadboard, Pro-Signal PSG-BB-170W|
|1x||Adjustable regulator, TI LM317KCS|
|1x||2032 battery holder, Multicomp BC-2001|
|1x||6-way socket, TruConnect DS1023-1*6 S01|
|1x||5-way header, Multicomp MC34739|
|1x||2.1mm power socket, TruConnect, 20-0970|
|1x||2KΩ trimmer, TE Connectivity 416XA202P|
|1x||Resettable 100mA fuse, Multicomp MC33169|
|2x||10µF electrolytic capacitors, Multicomp MCMR35V106M4X7|
|1x||100nF ceramic capacitor , Suntan TS15001E104MSBFBOR|
|3x||1A diode, Diodes 1N4001-T|
|4x||3mm white LEDs, Valcon VDIFFLED-3MM-W|
|1x||220Ω resistor, Multicomp MCF 0.25W 220R|
Also included is a sheet of StickerCAD icons. I used them on my laptop case - including a rebus if you look carefully;-)
I’ve yet to decide what component(s) I’ll put on the DIP adapter. But power supply boards are complete and working perfectly.
As a quick demonstration and test, I put a simple 4-stage CD4060 ripple counter running at a base frequency of around 10 Hz. on the breadboard, with outputs driving the LEDs on the shroud (essentially a 4-digit binary counter).