-->
Page 1 of 1

Does the ESP-07S need pull-up resistors? I dont think so.

PostPosted: Mon Oct 26, 2020 5:14 pm
by Friendroid
Datasheet:

https://docs.ai-thinker.com/_media/esp8 ... ion_en.pdf

Page 8: Some of the pins inside the module have been pulled or pulled down, please
refer to the schematic diagram


Schematics on Page 13 show RST, EN, GPIO2 and GPIO0 pulled-up; GPIO15 pulled-down. We just need to pull GPIO0 down before power up to enter Download Mode before uploading a sketch with arduino.

Using a CP2102, I've successfully uploaded the Scan and Access Point example sketches as a test.

VCC - VCC
GND - GND
TX - RX
RX - TX
GPIO0 - GND

For Running Mode, I just connected a power supply of 3.3V to Vcc and Gnd to Gnd.

Re: Does the ESP-07S need pull-up resistors? I dont think so

PostPosted: Tue Oct 27, 2020 12:29 pm
by JurajA
same for esp-01S. the S models have the pull up/down resistors on boot configuration pins