Parts (Electronics)
IC
| number | Name | Cost | Notes |
|---|---|---|---|
| 555 | Timer | 4¢ | - |
| 741 | Op Amp | 10¢ | - |
Modules
| Name | Cost | Description | |
|---|---|---|---|
| Voltage Meter | $2 | 3x7seg LED, generally wide ranges of voltages | |
| Buck Module | $2.50 | (4-40v) → (1.3-37v), includes led panel | - |
| number | Name | Cost | Notes |
|---|---|---|---|
| 555 | Timer | 4¢ | - |
| 741 | Op Amp | 10¢ | - |
| Name | Cost | Description | |
|---|---|---|---|
| Voltage Meter | $2 | 3x7seg LED, generally wide ranges of voltages | |
| Buck Module | $2.50 | (4-40v) → (1.3-37v), includes led panel | - |