Main Control & Processing Board
AssemblyMicroprocessor, image processing engine, LED driver, and power management. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Main Control & Processing Board parts and their functions
6 top-level parts · 15 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Main Microprocessor 2 parts | 1× | ARM Cortex-A9 or equivalent, 1 GHz clock, controls all peripherals. |
| 2 | Image Processing Hardware | 1× | DSP or FPGA, real-time vein detection algorithm, 30 FPS. |
| 3 | LED Current Driver 2 parts | 1× | Programmable constant-current source, PWM intensity control. |
| 4 | Power Management Unit 3 parts | 1× | Li-ion charger, DC/DC regulators, power sequencing. |
| 5 | Memory & Storage 2 parts | 1× | RAM for frame buffer, flash for firmware and calibration. |
| 6 | I/O Connector Board 2 parts | 1× | USB charging port, headphone jack, external I/O. |
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Bill of materials for Main Control & Processing Board
6 top-level lines · 19 rows shown · 15 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Main Microprocessor 2 parts | vein-finder-main-cpu | 1× | 1 | 2 | assembly |
| 1.1 | CPU Chip | vein-finder-cpu-ic | 1× | 1 | · | part |
| 1.2 | CPU Decoupling & Clock 1 parts | vein-finder-cpu-support-components | 1× | 1 | 1 | assembly |
| 1.2.1 | SMD Passive (R/C/L) | smd-passives | 1× | 1 | · | part |
| 2 | Image Processing Hardware | vein-finder-image-processor | 1× | 1 | · | part |
| 3 | LED Current Driver 2 parts | vein-finder-led-driver | 1× | 1 | 2 | assembly |
| 3.1 | LED Driver IC | vein-finder-led-driver-ic | 1× | 1 | · | part |
| 3.2 | Current Sense Resistor | vein-finder-current-sense-resistor | 1× | 1 | · | part |
| 4 | Power Management Unit 3 parts | vein-finder-power-management | 1× | 1 | 3 | assembly |
| 4.1 | Li-Ion Charger IC | vein-finder-charger-ic | 1× | 1 | · | part |
| 4.2 | DC-DC Buck Converter 1 parts | vein-finder-dcdc-converter | 1× | 1 | 1 | assembly |
| 4.2.1 | Power MOSFET | mosfet | 1× | 1 | · | part |
| 4.3 | Thermal Sensor (Temperature) | vein-finder-thermal-sensor | 1× | 1 | · | part |
| 5 | Memory & Storage 2 parts | vein-finder-memory-module | 1× | 1 | 2 | assembly |
| 5.1 | DRAM Module | vein-finder-dram-module | 1× | 1 | · | part |
| 5.2 | NAND Flash Storage | vein-finder-nand-flash | 1× | 1 | · | part |
| 6 | I/O Connector Board 2 parts | vein-finder-connector-board | 1× | 1 | 5 | assembly |
| 6.1 | Connector | connector | 4× | 4 | · | part |
| 6.2 | ESD Protection Diode Array | vein-finder-esd-protection | 1× | 1 | · | part |
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Where the main control & processing 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 |