A drop-in replacement for the regular port interface enabling for capacitive sensing of lick events. Connect a metal lickspout with a short piece of wire to the SNS port of the interface. Baseline calibration will be performed upon power-on - it can be triggered by briefly unplugging the port interface's RJ45 cable from the Bpod's behavior port once everything is in place.
| Item | Vendor | Qty | Part Number | Description |
|---|---|---|---|---|
| C1 | Digi-Key | 1 | CC1206JRX7R9BB682-ND | 6.8 nF capacitor (1206) |
| C2, C3 | Digi-Key | 2 | 311-1179-2-ND | 100 nF capacitor (1206) |
| IC1 | Digi-Key | 1 | AT42QT1011-TSHRTR-ND | touch sensor IC |
| R1 | Digi-Key | 1 | 13-RC1206FR-1010KLTR-ND | 10k ohm resistor (1206) |
| R2 | Digi-Key | 1 | 13-RC1206FR-1010RLTR-ND | 10 ohm resistor (1206) |
| Digi-Key | 1 | 3362P-501LF-ND | 500 ohm trimpot | |
| Digi-Key | 1 | 277-1721-ND | 2 pos screw terminal | |
| Digi-Key | 1 | 277-1736-ND | 4 pos screw terminal | |
| Digi-Key | 1 | A31413-ND | Ethernet jack | |
| Lee Valve | 1 | LHDA1231115H | Solenoid valve |
The above BOM is for the no_user version of the PCB. If you want to access the
extra two lines of the RJ45 connector (like we do at Poulet-Lab) use the respective version of the PCB (PortBreakoutCapacitive_r*.brd) and swap the 4 position screw terminal for a 6 position screw terminal (277-1738-ND).