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#1
ESP32 / Re: ESP32 poe noise
Last post by korneo - Today at 08:59:37 AMDear Lubolimex from Olimex, has there been any updates regarding this topic? i have used a diffrent poe board from another supplier which solved the issue, however i really like the Olimex boards and would love to use for simmulair applications, which isnt an option unfortunatly.
with kind regards,
Kornei
with kind regards,
Kornei
#2
ESP32 / Re: Esp32c3-devkit-lipo with b...
Last post by sa1003 - May 30, 2024, 01:02:25 PMThat's it! Reverse polarity. I relied on the colors of the cables... Thank you
#3
A20 / Re: Olimex A20 SoM with 2GB RA...
Last post by LubOlimex - May 29, 2024, 01:00:35 PMNo. We only have A20 designs with up to 1GB of RAM. We have A64 design with 2GB RAM, namely:
A64-OLinuXino-2Ge16G-IND
A64-OLinuXino-2Ge8G-IND
A64-OLinuXino-2Ge16G-IND
A64-OLinuXino-2Ge8G-IND
#4
A20 / Olimex A20 SoM with 2GB RAM
Last post by Madhu Gaddam - May 28, 2024, 07:24:57 PMRight now we are using the Olimex A20 SOM (i.e A20-SOM-n8GB ) with 1GB DDR memory. But we want to add new features to our product, which requires min 2GB DDR.
Does the Olimex has any 2GB A20 SoM variant? Quick help is required for this?
Does the Olimex has any 2GB A20 SoM variant? Quick help is required for this?
#5
ESP32 / Re: Esp32c3-devkit-lipo with b...
Last post by LubOlimex - May 27, 2024, 03:41:32 PMDid you check the polarity? One of the common mistakes is using an incompatible with the board battery (with reversed + and - on the connector)? "-" and "+" pins are marked below the connector on the top side.
If you've connected battery with reverse polarity it might have damaged the battery circuit.
Edit: I also checked the manufacturing procedures, there is empirical battery test that each board has to pass.
If you've connected battery with reverse polarity it might have damaged the battery circuit.
Edit: I also checked the manufacturing procedures, there is empirical battery test that each board has to pass.
#6
ESP32 / Re: Esp32c3-devkit-lipo with b...
Last post by sa1003 - May 27, 2024, 02:24:33 PMSorry, maybe Not written clearly. the Batterie doesn't take over-tested with the led and BT-Connection
#7
ESP32 / Re: Esp32c3-devkit-lipo with b...
Last post by LubOlimex - May 27, 2024, 09:11:50 AMYou can empirically confirm it is working. There are two ways:
1. Easier software but requires some additional hardware - Connect a LED with resistor between a free GPIO and GND, then download code for blinking LED to that GPIO. You can use breadboard and jumper wires.
2. Harder software but doesn't require anything additional - Without anything additional download some WIFI code that allows you to access or ping the board over the WIFI network. Like WIFI server. First confirm it is working over the USB. Then remove the USB and from another device in the same network confirm the connection (or even via the router's panel confirm the IP address associated with the board is still there).
1. Easier software but requires some additional hardware - Connect a LED with resistor between a free GPIO and GND, then download code for blinking LED to that GPIO. You can use breadboard and jumper wires.
2. Harder software but doesn't require anything additional - Without anything additional download some WIFI code that allows you to access or ping the board over the WIFI network. Like WIFI server. First confirm it is working over the USB. Then remove the USB and from another device in the same network confirm the connection (or even via the router's panel confirm the IP address associated with the board is still there).
#8
ESP32 / Re: ESP32-POE-ISO ESPHome: wro...
Last post by LubOlimex - May 27, 2024, 08:11:02 AMThanks for sharing. The important part about PoE2 is that it uses ESP32-WROVER chip instead of ESP32-WROOM. Which leads to different Ethernet clock pin compared to ESP32-POE.
#9
ESP32 / Esp32c3-devkit-lipo with batte...
Last post by sa1003 - May 26, 2024, 11:44:21 PMHello, First sorry for my unprofessional question - absolute newbie 
I want to operate the board with a 2000mAh LiPo battery. I measured correct 4.2V with the multimeter. When i disconnect the usb, there's no power. How can i ensure, hat the battery takes over?
Greetz, Guido
I want to operate the board with a 2000mAh LiPo battery. I measured correct 4.2V with the multimeter. When i disconnect the usb, there's no power. How can i ensure, hat the battery takes over?
Greetz, Guido
#10
ESP32 / Re: ESP32-POE-ISO ESPHome: wro...
Last post by dhy2k - May 25, 2024, 09:09:14 PMThanks everyone - great thread.
I have been trying to get Olimex-POE2 working with ESPHome on ethernet. I've had no problem with the previous POE version, but wanted the POE2 upgrade for the greater power to do door locks etc.
All the standard stuff on the internet & ESPHome didn't want to work for bringing up the ethernet. Various errors including:
[D][esp-idf:000]: E (368) lan87xx: lan87xx_init(499): wrong chip ID
After a degree of fiddling (and connecting to the POE2 via USB-USB from my Macbook) this is the config that works for ESPHome & the Olimex-POE2. Just sharing to help anyone else with the same headache :-)
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_OUT
phy_addr: 0
power_pin: GPIO12
I have been trying to get Olimex-POE2 working with ESPHome on ethernet. I've had no problem with the previous POE version, but wanted the POE2 upgrade for the greater power to do door locks etc.
All the standard stuff on the internet & ESPHome didn't want to work for bringing up the ethernet. Various errors including:
[D][esp-idf:000]: E (368) lan87xx: lan87xx_init(499): wrong chip ID
After a degree of fiddling (and connecting to the POE2 via USB-USB from my Macbook) this is the config that works for ESPHome & the Olimex-POE2. Just sharing to help anyone else with the same headache :-)
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_OUT
phy_addr: 0
power_pin: GPIO12