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STD Arduino Tens Timer
License: Public Domain
Mode: Editors' pick
- 2
Update time：
2021-12-30 09:44:03
Creation time：
2019-07-24 19:36:15
Description
Due to a caraccident a few years ago I've to treat myself with Tens, a neurostimulator for pain relief.
Three days a week I've to control manually sequences, 30 minutes P2 (program 2) and 1 hour P1 (program 1).
The problem is due to TBI, I've got now idea about the time nor changing te program.
This led to the idea of building a timertool with a buzzer and the timeschedule (sequences).
The Arduino requires 50 mA, so I run it with an external adaptor, the 9 Volt battery is tought as a backup in case I want to change floor/room.
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | BATTERY | BAT1 | BATTCON_9V | 1 |
| 2 | 1N4001 | D1,D2,D3,D4 | DO-41 | 4 |
| 3 | DC-JACK-SW | J1,J2 | J-DC- | 2 |
| 4 | 220E | R1 | AXIAL-1.0 | 1 |
| 5 | START | S1 | TACTILE-PTH-EZ | 1 |
| 6 | NEXT\nbeep\nstop | S2 | TACTILE-PTH-EZ | 1 |
| 7 | SKIP | S3 | TACTILE-PTH-EZ | 1 |
| 8 | BUZZER | SG1 | BUZZER-12MM | 1 |
| 9 | ARDUINOUNO | U1 | ARDUINO | 1 |
| 10 | LCD-16X2 | U2 | LCD-8X2 | 1 |
| 11 | SWITCH-SPST-2 | U3 | SWITCH-SPST-VERTICAL | 1 |
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