| ▲ | A PCB business card with a batteryless LED, powered by the phone that taps it(kevin.md) | |
| 3 points by thekevintang a day ago | 1 comments | ||
| ▲ | thekevintang a day ago | parent [-] | |
[flagged] | ||
| ▲ | A PCB business card with a batteryless LED, powered by the phone that taps it(kevin.md) | |
| 3 points by thekevintang a day ago | 1 comments | ||
| ▲ | thekevintang a day ago | parent [-] | |
[flagged] | ||