
LED Matrix Display Badge
0xlama/ATtiny_LED_Matrix_Display_Badge
An ATtiny85 based badge size PCB that can display alphabets and numbers .

The BS-7 is a button And Strip Battery Connector made by MPD in a SMD package with 2 pins. -55℃~+105℃ SMD Button And Strip Battery Connector ROHS.
PCBKit's library has its KiCad symbol (dk_Battery-Holders-Clips-Contacts:BS-7, from Digikey) and its footprint (Source_Footprints:Battery_Holder_Coin_2032_BS-7, from Digikey), ready for a KiCad board. JLCPCB lists it (part C7086592). 35 open-source boards in 33 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| Neg | — | Power out |
| Pos | — | Power out |

0xlama/ATtiny_LED_Matrix_Display_Badge
An ATtiny85 based badge size PCB that can display alphabets and numbers .

rbaron/lir2450-charger
A tiny USB C charger for LIR2450 coin cell batteries


ShawnHymel/555_badge
555 Badge ========= Badge project based on a 555 timer circuit. Users can follow along with the Digi-Key video series to design and fabricate their own badge PCB.


lucasasselli/keychain-tiny-game
Keychain reaction game to kill time while you wait your turn at the dentist office.


<iframe src="https://pcbkit.io/embed/parts/mpd/BS-7" title="BS-7 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/mpd/BS-7.jpg" alt="BS-7" width="1200" height="900">[](https://pcbkit.io/parts/mpd/BS-7)Yes. The symbol is dk_Battery-Holders-Clips-Contacts:BS-7 and the footprint Source_Footprints:Battery_Holder_Coin_2032_BS-7, both drawn on this page. PCBKit places them on a board for you when you design with it.
SMD, with 2 pins. Its footprint is drawn on this page.
MPD publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C7086592, with 0 in stock; the sellers' links on this page open their listings.
35 boards in 33 repositories on GitHub; the most starred are listed on this page, with their KiCad files.