thanks, I try a pull request against your sample. but i am more familiar with cvs and subversion, so may I am not able to get it at first glance.

I start a new project in some seconds like this: 1. copy some similar start code to a new path 2. New "Makefile project with Existing code" in eclipse 3. open project properties 4. go to C/C++ General -> Path and Symbols -> Gnu C -> Import Settings File like https://github.com/pcbreflux/espressif/bl...

Hi, the difference between esp_ble_gattc_write_char is writing to a characteristic (this is mainly what you want to send commands to your BLE device i.e. GATT Server) and esp_ble_gattc_write_char_descr writing to the descriptor (mostly used to enable the notification for reading characteristics with...

Hi, in addition to your code this is the my first crude I²C, u8g2, esp-idf example on a SSD1306 128x32 OLED display. https://github.com/pcbreflux/espressif/tree/master/esp32/app/ESP32_oled_i2c_u8g2 (some Arduino sample code here https://github.com/pcbreflux/espressif/tree/master/esp32/arduino/sketch...

Some additions to the mesurements with the Fluke 17B+:
losses: Long leads, battery holder leads,
crocodile clips, breadbord + wires + pcb adapter
dmm accuracy at mA 1.5% +-3 Digit
uA Range ESP32 dont start
burden Voltage?
shunt ?

Hi,

exellent SPI code. Thank you. If I find the time this week I can send you also a I2C version.

Similar setup with different multimeter:
Source https://github.com/pcbreflux/espressif/ ... leep_timer

LiFePo4 3.4V

I am looking at the 9mA mesurement but don't see the connected ESP32? only some kind of resistor? Missing some thing? What voltage are the (same?) batteries?