2 ms·
It is called "iButton" https://www.amazon.com/dp/B00R3GRBD8/ref=cm_sw_r_cp_apa_glt_fabc_K7RJXGPMP998QBB0GFEZ https://www.amazon.com/dp/B00R3GRBD8/ref=cm_sw_r_c
by j16sdiz 6y ago
It is called "iButton"
https://www.amazon.com/dp/B00R3GRBD8/ref=cm_sw_r_cp_apa_glt_fabc_K7RJXGPMP998QBB0GFEZ https://www.amazon.com/dp/B00R3GRBD8/ref=cm_sw_r_cp_apa_glt_...
- dkdk8283 6y agoThat’s a temperature sensor.