I am the current maintain of the firmware for this project. Recently, I've been doing development for it using the LILYGO TTGO ESP32 dev board (V2.1_1.6) https:

I am the current maintain of the firmware for this project. Recently, I've been doing development for it using the LILYGO TTGO ESP32 dev board (V2.1_1.6) https://www.aliexpress.com/item/32915894264.html?spm=a2g0o.productlist.0.0.671054bdhI1Hix&algo_pvid=aec249fc-c80a-4c81-8220-334dc9f635b1&algo_expid=aec249fc-c80a-4c81-8220-334dc9f635b1-0&btsid=6d976d5a-e661-47f6-b371-7f0bc42c5336&ws_ab_test=searchweb0_0,searchweb201602_7,searchweb201603_55 https://www.aliexpress.com/item/32915894264.html?spm=a2g0o.p... Therefore, power consumption specs should be similar to this board. We are working on a new board design with an integrated solar panel and two LoRa radios, but I am less involved in that part of the project, so I can't answer all your questions on the power system. Perhaps this link will help, though it has not been updated for the ESP32, https://github.com/sudomesh/disaster-radio/wiki/Power https://github.com/sudomesh/disaster-radio/wiki/Power Currently, it does not have a sleep mode, I recall there being some concerns with waking up from sleep mode back when I was dev'ing with the ESP8266, not sure if that has changed on ESP32, have not re-approached the idea it since switching to ESP32. We did have some do some tests with an off-the-shelf 15W solar panel and a super-cap, it seemed to work well. Check out their report, https://sudoroom.org/pipermail/disasterradio/2019-December/000142.html https://sudoroom.org/pipermail/disasterradio/2019-December/0...