https://github.com/gajdipajti/tiny-usb-switch
A small circuit to powercycle an USB device from serial.
https://github.com/gajdipajti/tiny-usb-switch
Last synced: 21 days ago
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A small circuit to powercycle an USB device from serial.
- Host: GitHub
- URL: https://github.com/gajdipajti/tiny-usb-switch
- Owner: gajdipajti
- License: gpl-2.0
- Created: 2022-06-10T16:45:37.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2022-06-11T06:05:57.000Z (almost 3 years ago)
- Last Synced: 2025-04-12T22:52:49.180Z (21 days ago)
- Language: C++
- Homepage:
- Size: 24.4 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# tiny-usb-switch
A small circuit to powercycle an USB device from serial.
## Contents
* tiny-schematic - KiCad schematic
* tiny-switch - ATTinyx5 code (currently optimized for ATTiny25) [ATTinyCore](https://github.com/SpenceKonde/ATTinyCore)
* tiny-script - Wrapper Bash script.
## BOM
All the materials were bought from a local supplier: [Robotron Electronika](https://www.ret.hu/) - [pdf catalogue](https://www.ret.hu/FlippingBook/files/assets/downloads/files/RETKAT2012.pdf)
### Parts list
* 1x [J2: USB-A socket](https://www.ret.hu/shop/product/assmann/usb-a-aljzat-90_53-07-97) - 249 HUF/piece
* 1x [J1: USB-B socket](https://www.ret.hu/shop/product/assmann/usb-b-aljzat-90_53-07-96) - 498 HUF/piece
* 1x [H25PR050 proto board](https://www.ret.hu/shop/product/rademacher/h25pr050_75-00-15) - 490 HUF/piece
* 1x [K1: NA5W-K relay](https://www.ret.hu/shop/product/takamisawa/na-5w-k_49-00-67) - 888 HUF/piece
* 1x [U1: ATTINY25-20PU](https://www.ret.hu/shop/product/microchip-atmel/attiny25-20pu_42-09-84) - 699 HUF/piece
* 1x [DIL8 socket](https://www.ret.hu/shop/product/assmann/dil8-lemezes-assmann_51-02-23) - 45 HUF/piece
* 2x [D2: GLED](https://www.ret.hu/shop/product/liteon/5xc-zold-ltl307ge_46-01-09) or [D1: RLED](https://www.ret.hu/shop/product/liteon/5xc-piros-ltl307ee_46-01-07) - 20 HUF/piece
* 2x [R1&R2: 1k resistor](https://www.ret.hu/shop/product/yageo/1-kohm-0-4w-1-rm2_02-06-13) - 20 HUF/piece
* 1x [Q1: NPN transistor](https://www.ret.hu/shop/product/onsemi/2n-3904g-n_21-00-78) - 75 HUF/piece
* 1x [J1: male pin header](https://www.ret.hu/shop/product/e-tec/40g-stiftleiste_53-03-25) - 199 HUF/piece
* 1x [C1: 100nF 50V +/- 10% capacitor](https://www.ret.hu/shop/product/nic-components/100-nf-50v-10-x7r-rm1-tape_10-01-45) - 149 HUF/piece
### In table format (in hungarian)
| Sorszám | Termékkód | Termék | Egységár (Nettó) | Egységár (Bruttó) | Mennyiség | Összesen (Nettó) | Összesen (Bruttó) |
|---------|-----------|------------------------------|------------------|-------------------|-----------|------------------|-------------------|
| 1 | 53-07-97 | USB-A aljzat 90° | 196.06 HUF | 249 HUF | 1 | 196.06 HUF | 249 HUF |
| 2 | 53-07-96 | USB-B aljzat 90° | 196.06 HUF | 249 HUF | 2 | 392.12 HUF | 497.99 HUF |
| 3 | 75-00-15 | H25PR050 | 385.82 HUF | 489.99 HUF | 1 | 385.82 HUF | 489.99 HUF |
| 4 | 49-00-67 | NA 5W-K | 699.21 HUF | 888 HUF | 1 | 699.21 HUF | 888 HUF |
| 5 | 42-09-84 | ATTINY25-20PU | 550.4 HUF | 699.01 HUF | 1 | 550.4 HUF | 699.01 HUF |
| 6 | 51-02-23 | DIL8 lemezes Assmann | 35.43 HUF | 45 HUF | 1 | 35.43 HUF | 45 HUF |
| 7 | 46-01-09 | 5XC zöld LTL307GE | 15.75 HUF | 20 HUF | 1 | 15.75 HUF | 20 HUF |
| 8 | 46-01-07 | 5XC piros LTL307EE | 17.32 HUF | 22 HUF | 1 | 17.32 HUF | 22 HUF |
| 9 | 02-06-13 | 1 KOhm 0.4W 1% RM2 | 7.87 HUF | 9.99 HUF | 2 | 15.74 HUF | 19.99 HUF |
| 10 | 21-00-78 | 2N 3904G *N | 59.06 HUF | 75.01 HUF | 1 | 59.06 HUF | 75.01 HUF |
| 11 | 53-03-25 | 40G Stiftleiste | 156.69 HUF | 199 HUF | 1 | 156.69 HUF | 199 HUF |
| 12 | 10-01-45 | 100 nF 50V ±10% X7R RM1-Tape | 117.32 HUF | 149 HUF | 1 | 117.32 HUF | 149 HUF |
| | | | | | | Nettó összesen | Bruttó összesen |
| | | | | | | 2641 HUF | 3354 HUF |
### USB-to-Serial
I used the CED007700 - USB to RS232 TTL PL2303HX device. It won't work on windows.
## Images
