Bill of Materials (Beeb Board) - IanSB/RGBtoHDMI GitHub Wiki

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 Notes
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

A Pi Zero W can be used instead.

PCB manufacture

The latest gerber files are here:
https://github.com/hoglet67/RGBtoHDMI/blob/master/kicad/v4/manufacturing/manufacturing.zip

Just upload these to Seed Studio:
https://www.seeedstudio.com/fusion_pcb.html

The price for 10 boards, including shipping, works out at about £12.00

CPLD Programming

I use the following clone of the Xilinx Platform Cable:
https://www.ebay.co.uk/itm/Xilinx-Platform-USB-Download-Cable-Jtag-Programmer-FPGA-CPLD-C-Mod-XC2C64A-M102-/272154533106

The Jedec file can be found here:
https://github.com/hoglet67/RGBtoHDMI/tree/master/vhdl

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