Search found 3 matches

by kevs_oc
Wed Sep 22, 2021 10:16 pm
Forum: ESP32 Related
Topic: Unable to flash esp32 dev board with LoRa radio attached
Replies: 1
Views: 14725

Re: Unable to flash esp32 dev board with LoRa radio attached

I had 2 SPI devices attached to the dev board, 1 on HSPI and one on VSPI. It occurred to me that the LEDs tied to pins 18 and 19 (VSPI SCLK and MISO) might be causing an issue. I removed them and now I am able to flash the dev board with the radio's VCC pin attached. Not sure why since the radio was...
by kevs_oc
Wed Sep 22, 2021 12:12 am
Forum: ESP32 Related
Topic: Unable to flash esp32 dev board with LoRa radio attached
Replies: 1
Views: 14725

Unable to flash esp32 dev board with LoRa radio attached

I have the LoRa SX1280 attached to the ESP32 breakout board but if I have the VCC from the radio connected to any of the 3.3v pins on the board or if it is connected to a common power rail, the board will not flash. Whether I am using the Arduino IDE, PlatformIO or the ESP-IDF toolset the result is ...
by kevs_oc
Mon Sep 20, 2021 11:19 am
Forum: ESP32 Related
Topic: ESP32_BAT_PRO power measurements
Replies: 1
Views: 17631

ESP32_BAT_PRO power measurements

I have been testing the batt pro board for power consumption using the Otii Arc and found the following: Deep sleep powered by VIN at 4.2v = 179uA Deep sleep powered by VIN at 4.7v = 723uA Deep sleep powered by VIN at 5v = 729uA Deep sleep powered by battery at 3.7v = 23.5uA Any ideas why the power ...