I plan to use it in my new build. Unfortunately, I could not find a catalog sheet for the 3.3V regulator HM6245P3V3PR anywhere. Can you please tell me what is the maximum supply cu...

The charging indicator also lights up when the solar panel is connected and is charging.

Who can I contact so that the board "FireBeetle 2 ESP32-C6" can be included? https://registry.platformio.org/platforms/platformio/espressif32/boards
I have gotten into the habit of running the administration via ESPHome, which uses the one above. Without integration, it becomes very cumbersome with Github links and others.

I received a Firebeetle 2 ESP32-C6, and cannot get it to connect. I believe the usb is broken, or the software may have been incompletely written.

Upon attaching the board to a computer, linux reports it is unable to enumerate the device. Rebooting the PC did not affect this behavior.

[ 427.092874] usb 3-2.1: new full-speed USB device number 4 using xhci_hcd
[ 427.220922] usb 3-2.1: device descriptor read/64, error -32
[ 427.456909] usb 3-2.1: device descriptor read/64, error -32
[ 427.569685] usb 3-2-port1: attempt power cycle
[ 429.104877] usb 3-2.1: new full-speed USB device number 5 using xhci_hcd
[ 429.105078] usb 3-2.1: Device not responding to setup address.
[ 429.313065] usb 3-2.1: Device not responding to setup address.
[ 429.521026] usb 3-2.1: device not accepting address 5, error -71
[ 429.521191] usb 3-2.1: WARN: invalid context state for evaluate context command.
[ 429.649020] usb 3-2.1: new full-speed USB device number 6 using xhci_hcd
[ 429.649160] usb 3-2.1: Device not responding to setup address.
[ 429.861020] usb 3-2.1: Device not responding to setup address.
[ 430.069030] usb 3-2.1: device not accepting address 6, error -71
[ 430.069323] usb 3-2.1: WARN: invalid context state for evaluate context command.
[ 430.069407] usb 3-2-port1: unable to enumerate USB device

There is a brief flash of the red LED, and then nothing happens after that point. I cannot see the board with the computer. Is there another way to connect? I have a UART cable and can attempt a pin out directly, but I am unsure if even this will work if the software is broken. Please advise.

these don't work with any of the firebeetle covers sold on df robot. this is completely not obvious from looking at the product page of either this or the covers

Can this be used to power https://www.dfrobot.com/pro... I'm thinking of this configuration. solar panel, lipo battery, esp32 (this), and n20 motor with a driver. esp32 will consume power through lipo and it will also provide power (turn on/off with some other controls) to n20 (if this is possible).

May I ask how did you determine that ESP32 was rebooting? Is it through code or a certain GPIO.
If you are using the on-board LEDs, the FireBeetle on-board lights should be off when only the LiPo battery is plugged in.

If you are using any code to determine this, please send a test video and a photo of the battery connection to techsupport@dfrobot so we can troubleshoot the issue.

Are you able to use a multimeter to actually measure what the voltage of the battery is? Because for some lithium batteries, you need to adjust the parameters of the battery voltage reading formula to get an accurate voltage reading.

Hi, I uploaded code several times and now I'm getting error 2. I've tried several cables. I've tried also to to hold BOOT, click RST, and then release the BOOT but that did not work also. Any clues? Thanks

The CS pin is just a high and low level signal. It can be set to any GPIO.

So I measured the battery with a multimeter and it shows 3.63v Wich should be able to power the board. But when I unplug the USB C the board doesn't boot. I uploaded the Blink example to be sure that plugged in it works but not with the battery. Pretty weird...

Battery is:
https://amzn.eu/d/d8VdEzR

Hi! I dont think my battery is charging. I have a L13454 Lipo battery, 3.7v 2OOOmAh 7.4Wh. When it's plugged in, the led is on, I can mesure voltage with the code in the basic tutarial. But Voltage doesn't change. Its changing from 622 to 623. Its been pluged in with USB C from a computer for more than 2H. Is there anything else I should know about battery charging

Thanks a lot !

Please review my response to your feedback (below) and let me know if this board is defective. I can verify that the female battery connector, mounted to the board, is not properly aligned. I order three of these boards and all connectors were misaligned on arrival.

1. Yes, the battery will be charged while connected to USB
2. you can upload the code when both USB and battery are connected at the same time
3. The power supply will automatically switch to the battery when the USB is unplugged.
4. the parameter of the power detection code is fixed, we connect voltage divider resistor in series in the circuit.

You can find sample code for the Arduino IDE in the Basic tutorial and Advanced Tutorial within our wiki.

Regarding the power failure issue, it is recommended that you increase the input voltage of VIN (5V), because WiFi operates with higher power consumption, which will lead to higher LDO voltage drop, resulting in lower than the chip's operating voltage, the typical operating voltage of the ESP32-C6 is 3.3V.

Regarding the WiFi issue.
Would you be able to send your code to us via email so we could test it?

[email protected]

Hi team, I'm having trouble loading larger bin files onto this board. Small files like a blink program load fine - as they are very small - but I'd like to load a little tcp socket server. That failes every time at some random percentage of the upload.

I'm using the esptool and I've tried a variety of baud rates and no-stub config commands. I've also tried getting it into "boot" mode and more.

Any suggestions? Should I use something other than esptool 4.7.0?

The error:
"A fatal error occurred: Packet content transfer stopped (received 0 bytes)"

Hi - Will this charge a battery via solar while the chip is in deep sleep?

Were you able to successfully print any information using Serial.print()? We think you may not have enabled the USB CDC option. https://uploads.disquscdn.c...

Furthermore, I've been experiencing issues with wifi on this board (and the Beetle ESP32 C6 Mini) when testing close (2m) to my AP. Turning on wifi stats on the devices I can see that TX retries were extremely high causing connectivity issues and very high latency even with very good RSSI of -37. Reducing the power output from the default 20dBm to 16dBm has resolved this problem. This doesn't happen with other vendor's C6 dev boards I have but they seem to have lower RSSI. I'm using esp-idf 5.1.3.

The other issue I'm having with this board are brownouts:

D (45) app_main: Reset due to brownout (ESP_RST_BROWNOUT)

when using wifi and input voltage lower than ~3.7V (I'm using an Otii Arc to power the device). From reading the spec sheet I can see the ESP32 minimum brownout voltage is 2.51v (and currently set in my sdkconfig). Attaching an oscilloscope probe to a power pin (VDDA3P3) of the C6 IC directly, I can see it dip below this value:

https://uploads.disquscdn.c...

I have two FireBeetle 2 ESP32 C6's, both have this issue.

Any help appreciated.

In my climate we regularly experience temperatures below 0C where lipos should not be charged. I was disappointed to find out that the Solar Charger IC (CN3165) does not have the Temperature Sense (TEMP) pin broken out for a 10k NTC Thermistor and attached to a voltage divider, in addition to a trace that could be cut to disconnect it from ground. Thus I can't use the solar charging capability in my project without the possibility of damaging the lipo connected to it in cold weather.

It would also be nice to have the ISET pin broken out, so we can manually connect it to an ADC pin on the C6 to read out the solar charge current to see how effective a panel is at charging up our batteries in different locations.

Please could you make a new revision and add these to the NC pins on the board? I would buy a lot more of them then :)

Thanks