I have a Wemos D1 Mini with an NTC and voltage divider. I have elaborate code that runs fine when the Wemos is stand alone and attached to my PC's USB. I also have a battery shield attached to a 3,7 LiPo battery. Whenever I hook this up to the Wemos D1 I observe the following behavior.
- First boot goes fine.
- After a few seconds I do a reset or interrupt the power and then the boot fails with:
Fatal exception (0):
epc1=0x40100003, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
- I have tripple checked the solderings and tried pulling Hi GPIO0 and GPIO2, this aside from GPIO15 which I pulled low already.
I have used different sets of hardware, to no avail.
Please see attached a schema and a picture for reference.
- Green wire is pulling GPIO15 low
Battery + is connected to shield out of view via underside of shield, minus can be seen
Purple wires is NTC.
Any suggestions would be very much appreciated.