Control Unit
AssemblyThe main electronics: a digital signal-processing board that samples each receive zone, runs the discrimination algorithm, and commands the alarm and display. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Control Unit
7 top-level lines as of r186392| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Bare PCB | pcb-bare | 1× | 1 | · | part |
| 2 | Compute SoC Module | soc-module | 1× | 1 | · | part |
| 3 | Microcontroller | mcu | 1× | 1 | · | part |
| 4 | DSP Signal Processor | walkthrough-metal-detector-dsp | 1× | 1 | · | part |
| 5 | Multi-Channel ADC | walkthrough-metal-detector-adc | 2× | 2 | · | part |
| 6 | Connector | connector | 4× | 4 | · | part |
| 7 | SMD Passive (R/C/L) | smd-passives | 260× | 260 | · | part |