this module was running on a single AA battery from october 2017 until 17-8-18 , transmitting every 5 minutes, it transmitted 83565 frames - 6844 hours - totals 290 days alive !
its open source
this module was running on a single AA battery from october 2017 until 17-8-18 , transmitting every 5 minutes, it transmitted 83565 frames - 6844 hours - totals 290 days alive !
its open source