Bill of Materials (Beeb Board)

Introduction

This page lists the parts I used for the first batch of RGBtoHDMI boards.

(Apart from the capacitors which were out of stock, so I substituted).

It is not really cost effective to buy the parts for a single board.

Ideally one person needs to order the parts for 10 boards, and the split these into "kits".

PCB assembly

Part Description	Supplier	Quantity	Part Ref	Min Order	Notes
220R 0805 Resistor	RS 223‑0332	2 off	R4, R5	50
10K 0805 Resistor	RS 740‑9072	4 off	R1-R3, R6	50
100nf 0805 Multilayer Ceramic Capacitor	RS 464‑6688	4 off	C1, C4-C6	50	working voltage ≥ 10V
10uF 0805 Multilayer Ceramic Capacitor	RS 885‑1698	2 off	C2-C3	50	working voltage ≥ 10V
Green 0805 LED	RS 861‑0037	2 off	D1-D2	50
XC9572XL-10VQG44C	Farnell 2831287	1 off	U1	1
SN74LS08D 14-pin SOIC	RS 663‑2375	1 off	U2	5
SPST Momentary Action Tactile Switch	RS 758‑1941	4 off	SW1-SW4	20
2x20 way 0.1" female PCB header	RS 173‑1073 Farnell 2827916	1 off	P1	11 1
1x2 / 1x3 / 1x6 way right angle 0.1" male PCB header (low profile)	RS 251‑8654	1 off	P2,P3,P6	10	part is 36-way, break as required
1x2 way 0.1" female PCB header	RS 154‑8312	1 off	P1	11
1x6 way Molex KK 254 7478 right angle PCB Header	RS 679‑5473	1 off	P5	10
11mm M2.5 threaded spacers	CPC PC01988	4 off		50

Cable assembly

Part Description	Supplier	Quantity	Min Order
1x6 Molex KK 254 2695 connector housing	RS 679-5391	1 off	10
Molex KK 254 2759 crimp terminal contacts	RS 172-9178	6 off	100
6 way DIN plug	CPC CN00039	1 off	1
6 core flexible security/alarm cable	local electrical shop	1M

You can just about attach the crimp connectors to the cable with pliers, but I would not want to do this for 10 sets of cable. I ended up buying this tool from Amazon: https://www.amazon.co.uk/gp/product/B002AVVO7K

Raspberry Pi

Part Description	Supplier	Notes
Raspberry Pi Zero Essentials Kit	Pi Hut	cheapest way to buy a Pi Zero now
Micro SD card	PiHut	any size will do
Adafruit Mini HDMI Cable	PiHut	or use a full size cable, and the adapter in the essentials kit
Adafruit Serial Cable	PiHut	optional, for diagnostics