I’m seeing high battery drain on a Tbeam 1.1 with the most recent firmware and all default settings. I left it running overnight and it went from 100% to 0 in about 10 hours. A heltec Lora 32 was running right next to it and only dropped to 70% over the same time (also latest firmware and default settings.) No other nodes meshed at this time. Thoughts on what might be causing this? Thanks,
1.2.63… I assume this is the latest stable version since it loaded automatically on the flasher. I did a factory reset since tinkering previously. Then changed nothing in the flasher or app for this latest test, all default settings.
Unsure if it’s related, but the range is less than expected between these nodes on long/slow. Today I hooked the heltec to an external antenna on my roof which I usually use as a base station for 900 ism digital radios. Figured this would make a good relay node. Going mobile with the tbeam, range is significantly less than with the radios. TX power is lower of course (20dbm vs 29dbm), but I figured the reduced data rate would make up for that. I also have a helium hotspot at the same location that receives packets from a heltec device at even longer distances than the radios… Was expecting similar performance to that. Will keep tinkering and see what I can find.
Hmmm, the Amazon listing makes no mention of the 1262 chip. And I think it only has “Lora 32” printed on it. Just found some comments that the 1262 version has lower power consumption and better RX sensitivity. Will verify later, but maybe that’s my problem…
For anyone interested in the power draw numbers, I just took some measurements. Interestingly, I couldn’t find a way to power down the Heltec or put it into deep sleep. Still significant draw in “sleep” mode (hold down on PRG and press RST.) Will probably need to add a switch in the battery wiring. Also, screen on/off didn’t make a significant difference on either device.
Tbeam 1.1 (not 1262)
.04ma powered off
+235ma to battery usb charging
Heltec Lora 32 V2
+110ma to battery usb charging