rusefi_documentation/Prometheus-Assembly-USB.md

## 3 USB block

## (a) - driver & isolation

### Component List

![Components](Hardware/Prometheus/Prometheus_assembly_3a-comp.jpg)

### PCB Top Side

![Placement](Hardware/Prometheus/Prometheus_assembly_3a-pcb.jpg)

## (b) - minimal circuitry & protection

### Component List

![Components](Hardware/Prometheus/Prometheus_assembly_3b-comp.jpg)

### PCB Top Side

![Placement](Hardware/Prometheus/Prometheus_assembly_3b-pcb1.jpg)

### PCB Bottom Side

![Placement Bottom Side](Hardware/Prometheus/Prometheus_assembly_3b-pcb2.jpg)

## (c) - USB connector

### Component List

![Components](Hardware/Prometheus/Prometheus_assembly_3c-comp.jpg)

### PCB Top Side

![Placement](Hardware/Prometheus/Prometheus_assembly_3c-pcb.jpg)

**Now check if USB works by connecting to your PC!**