Main Board
AssemblyMain board with the MCU, a precision ADC reading the smoke and CO channels, supporting passives, and board connectors. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Main Board parts and their functions
5 top-level parts · 76 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Bare PCB | 1× | Main board PCB |
| 2 | Microcontroller | 1× | Alarm logic MCU |
| 3 | Sensor ADC | 1× | Precision sensor ADC |
| 4 | SMD Passive (R/C/L) | 70× | Bias, filtering, and decoupling |
| 5 | Connector | 3× | Sensor, sounder, power connectors |
3D model
No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).
Build & assembly graph
expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly
shared across products
atomic part
related product
Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.
Bill of materials for Main Board
5 top-level lines · 5 rows shown · 76 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Bare PCB | pcb-bare | 1× | 1 | · | part |
| 2 | Microcontroller | mcu | 1× | 1 | · | part |
| 3 | Sensor ADC | smoke-detector-adc | 1× | 1 | · | part |
| 4 | SMD Passive (R/C/L) | smd-passives | 70× | 70 | · | part |
| 5 | Connector | connector | 3× | 3 | · | part |
Something wrong in this list? Report a problem with this BOM.
Where the main board is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$200. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
|
🇨🇳JLCPCB
jlcpcb.com ↗
|
Shenzhen, CN | PCB fabrication | 100 pcs | 2–4 wks |
|
🇨🇳PCBWay
pcbway.com ↗
|
Shenzhen, CN | PCB fab & assembly | 100 pcs | 2–4 wks |
| scc.com.cn ↗ | Shenzhen, CN | PCB manufacturer | 100 pcs | 2–4 wks |
| shogini.com ↗ | Mumbai, IN | PCB manufacturer | 100 pcs | 2–4 wks |
| venture.com.sg ↗ | Singapore | Electronics contract mfg | 100 pcs | 2–4 wks |