Sourcing Parts
Written by Alex Ren for hwdocs.hackclub.dev
Welcome to part sourcing! This guide offers optimization tips for part selection and budgeting. Submit BOMs to #highway on Slack for community feedback.
Do's and Don'ts
Do:
- Research parts thoroughly
- Ask on Slack for advice on part selection
Don't:
- Purchase expensive oscilloscopes ($100+)
- Buy extra parts for future projects
- Buy overpriced modules on Amazon when cheaper alternatives exist elsewhere
All parts should be compiled into a BOM with specific links.
Specific Parts
General: Reference parts from established projects like Adafruit to reduce unknowns.
Modules (TP4056, LED matrices, etc): AliExpress offers the cheapest pricing with typical 2–3 week shipping. Amazon is available for urgent needs.
SBCs (Raspberry Pi, Orange Pi, etc): Orange Pis are available via AliExpress. Consider repurposing old computers for non-space-sensitive applications.
Microcontrollers (Arduino, RP2040, etc): AliExpress is recommended. Note that Arduinos are outdated by current standards.
PCBs:
- India: SEEED Studio Fusion Service (accepts HCB cards, cheapest option)
- Other countries: JLCPCB (under $6 shipped for boards under 100x100mm)
- US specifically: PCBWAY (roughly half JLCPCB's cost due to tariff avoidance)
- ENIG is not permitted except for golden fingers, with case-by-case approval
- Edge plating is only allowed if functional
- Choose the cheapest option that yields working PCBs
Country-Specific Notes
Qatar
Parts & Tools:
- Voltaat (Electronics and 3D printers. Gives discounts to Qatar University students. Same day delivery to most of Qatar. Also has a makerspace. Located in Doha)
- SmartQat (Electronic components and tools and some chemistry things. Located in Al Rayan)
- Al Annabi (Sells some electronics components. Located in Doha.)
3D Printing:
Egypt
Parts & Tools:
- RAM Electronics (Cytron certified, significantly lower pricing. Located in Downtown Cairo)
- Flux Electronix (3D printer parts and electronics. Located in Downtown Cairo)
- Lampatronics (Very competitive pricing, in many times it's cheaper than RAM. Located in Downtown Cairo)
- Free Electronics (Diverse stock of components and tools, good prices. Located in Downtown Cairo)
- Makers Electronics (Very diverse stock of components and tools. Located in Alexandria, shipping to Cairo takes 3 days)
- UGE One (Very good to find specific rare chips and components. Located in Nasr City, Cairo)
- IC Hat (Good to find rare chips and spare parts. Located in Downtown Cairo)
PCBs:
- Metanoia (affordable local PCB fab located in Cairo)
- Free Electronics offers PCB design and fabrication.
- UGE One offers PCB design and fabrication.
3D Printing:
- Lampatronics offers 3D printing services.
India
Most vendors don't accept international cards (HCB falls into this category). Contact local vendors directly.
Vendors accepting HCB cards for electronic parts:
- Silverline Electronics
- RoboSap
- RoboticsDNA
- EBhoot
- Electronicscomp
- Sharvi Electronics
- Novo3D
3D Printing Services:
- 3Ding
AliExpress Tips
- Welcome deals only apply once per account — don't budget assuming continued discounts
- Monitor estimated shipment dates (generally reliable by region)
- Compare total costs including shipping fees — low initial prices don't guarantee savings
- Recommended vendors: AITXEM ROBOT (microcontrollers), Trianglelab (3D printer parts)