[Bug]: Heltec Wireless Tracker Battery issues - possible fix #3760
Comments
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Turns out my battery monitoring issues were caused by hardware defects. I'm still wondering if the "possible fix" would help with battery life though. |
https://meshtastic.discourse.group/t/heltec-tracker-v1-and-v1-1-power-config/12016/4 WORK IN PROGRESS TL;DR. Output high to measure voltage in the same why as other heltec device forces the ESP32 to try to pump 3.3v into the base of Q3. Solution, use internal pullup and pulldown resistors. http://community.heltec.cn/t/wireless-tracker-power-consumption/13841/6 Progress so far: * Hasn't caught fire yet. * Battery measurements seems ok TODO: * Measure current, check voltages at pins. * Not in a position to measure or a differences for a few days. * take a better look at code * CLA issues? credit to OP? * check circuit for tracker v1.0 Related to this open issue. meshtastic#3760
https://meshtastic.discourse.group/t/heltec-tracker-v1-and-v1-1-power-config/12016/4 WORK IN PROGRESS TL;DR. Output high to measure voltage in the same why as other heltec device forces the ESP32 to try to pump 3.3v into the base of Q3. Solution, use internal pullup and pulldown resistors. http://community.heltec.cn/t/wireless-tracker-power-consumption/13841/6 Progress so far: * Hasn't caught fire yet. * Battery measurements seems ok TODO: * Measure current, check voltages at pins. * Not in a position to measure or a differences for a few days. * take a better look at code * CLA issues? credit to OP? * check circuit for tracker v1.0 Related to this open issue. meshtastic#3760
https://meshtastic.discourse.group/t/heltec-tracker-v1-and-v1-1-power-config/12016/4 WORK IN PROGRESS TL;DR. Output high to measure voltage in the same why as other heltec device forces the ESP32 to try to pump 3.3v into the base of Q3. Solution, use internal pullup and pulldown resistors. http://community.heltec.cn/t/wireless-tracker-power-consumption/13841/6 Progress so far: * Hasn't caught fire yet. * Battery measurements seems ok TODO: * Measure current, check voltages at pins. * Not in a position to measure or a differences for a few days. * take a better look at code * CLA issues? credit to OP? * check circuit for tracker v1.0 Related to this open issue. meshtastic#3760
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I have been ill the past three weeks, better now but a lot of things have piled up. Nice that it has been committed. Let's keep this open for now. I'll try to set up a raspberry pi in the next week to measure current and collect logs to see what the actual difference is. |
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sorry - I just noticed this bug (thanks @GUVWAF !). I think I just pushed identical changes in geeksville@d017fc7 . I'll also be adding a commit tomorrow to fix the Vext enable problem on this board. |
No problem... I've been overloaded this summer. |
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Fixed in d017fc7 |
Category
Other
Hardware
Heltec Wireless Tracker
Firmware Version
2.3.7.30fbcab
Description
THE PROBLEM
The heltec wireless tracker has poor battery performance and battery monitoring doesn't seem to work at all. It always shows that it is powered by USB and will over drain the battery and potentially cause a fire.
POSSIBLE FIX
There is a recent (within the last 15 days) post on the Meshtastic discourse forums with a potential fix that I'm hoping can be implemented. https://meshtastic.discourse.group/t/heltec-tracker-v1-and-v1-1-power-config/12016/4
Relevant log output
No response
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