Search found 13 matches
- Thu Dec 25, 2025 5:07 am
- Forum: Hardware
- Topic: Need Help With 5V for ESP32S3 from Both Battery/Buck Converter and USB port for Programing
- Replies: 0
- Views: 1230
Need Help With 5V for ESP32S3 from Both Battery/Buck Converter and USB port for Programing
I have a 3S LiIon battery pack, so ~12V, connected to an MPM3610 buck converter to produce 5V for an ESP32S3 DevKit C-1. I need to also have a USB cable (with 5V) attached to the ESP32S3 for programming. Is this circuit adequate for having the 5V from the battery connected to the ESP32S3 AND the USB ...
- Wed Nov 19, 2025 10:17 pm
- Forum: Hardware
- Topic: Can I use GPIO 12 and 13 for I2C bus?
- Replies: 2
- Views: 2777
- Wed Nov 19, 2025 5:58 pm
- Forum: Hardware
- Topic: Can I use GPIO 12 and 13 for I2C bus?
- Replies: 2
- Views: 2777
Can I use GPIO 12 and 13 for I2C bus?
I am a bit confused by the documentation for the ESP32S3 N8R16 devkit boards. These boards have 2 USB-C connectors on the side away from the processor and the reset/boot buttons up near the processor. I think they are devkitc-1.1 boards. I am attaching them to a 4 layer PCB, so it would be very hard ...
- Sun Nov 16, 2025 7:53 pm
- Forum: Hardware
- Topic: How to layout a custom PCB with an ESP32S3 and integrated antenna?
- Replies: 1
- Views: 3096
How to layout a custom PCB with an ESP32S3 and integrated antenna?
I am interested in the group's recommendations and experiences with PCB layout and integrated antennas.
I am using an ESP32S3 DevKitC-1 in a socket for prototyping and then will convert to a smaller version later. I have a 4 layer PCB - L1=signals, L2=ground, L3=power, and L4=signals.
I can ...
I am using an ESP32S3 DevKitC-1 in a socket for prototyping and then will convert to a smaller version later. I have a 4 layer PCB - L1=signals, L2=ground, L3=power, and L4=signals.
I can ...
- Tue Feb 25, 2025 10:53 pm
- Forum: Hardware
- Topic: Need Help Debugging an ESP-NOW Project
- Replies: 1
- Views: 1453
Re: Need Help Debugging an ESP-NOW Project
The issue turned out to be misreading the ezButton documentation. I used the pin # in the button definition, but ezButton wants the GPIO number. Progress!
- Tue Feb 25, 2025 10:08 pm
- Forum: Hardware
- Topic: Need Help Debugging an ESP-NOW Project
- Replies: 1
- Views: 1453
Need Help Debugging an ESP-NOW Project
I am following this tutorial - https://randomnerdtutorials.com/esp-now-two-way-communication-esp32/ . I have 2 ESP32 S3 DevKitC boards and some associated hardware to read switches using ezButton and turn on some LEDs. Board A, the Launcher, starts up just find but can't communicate with Board B ...
- Wed Nov 27, 2024 5:51 pm
- Forum: Hardware
- Topic: Which board do I have?
- Replies: 2
- Views: 1406
Which board do I have?
I ordered from Amazon the ESP32 S3 Development Board ESP32-S3-DevKitC-1-N8R8 https://www.amazon.com/dp/B0D93FLZLH?ref=ppx_yo2ov_dt_b_fed_asin_title , and it looks like this (note the placement of the reset and en buttons):
https://m.media-amazon.com/images/I/71pgSIHMG8L._AC_SL1500_.jpg
When I ...
https://m.media-amazon.com/images/I/71pgSIHMG8L._AC_SL1500_.jpg
When I ...
- Sat Nov 23, 2024 7:09 pm
- Forum: Hardware
- Topic: New to ESP32 Programming - Getting Weird ADC Readings and Can Only Run Code Once
- Replies: 1
- Views: 1261
Re: New to ESP32 Programming - Getting Weird ADC Readings and Can Only Run Code Once
I was able to fix the weird ADC readings with
adc.atten(ADC.ATTN_11DB) # Set to 3.3V range
adc.width(ADC.WIDTH_12BIT) # 12-bit resolution (0-4095, default)
and I get this output now:
DAC voltage: 0.25 ADC voltage: 0.18
DAC voltage: 0.5 ADC voltage: 0.41
DAC voltage: 0.75 ADC voltage: 0.63
DAC ...
adc.atten(ADC.ATTN_11DB) # Set to 3.3V range
adc.width(ADC.WIDTH_12BIT) # 12-bit resolution (0-4095, default)
and I get this output now:
DAC voltage: 0.25 ADC voltage: 0.18
DAC voltage: 0.5 ADC voltage: 0.41
DAC voltage: 0.75 ADC voltage: 0.63
DAC ...
- Sat Nov 23, 2024 5:29 am
- Forum: Hardware
- Topic: Is there an ESP32xxx chip I can use for my project?
- Replies: 3
- Views: 1694
Re: Is there an ESP32xxx chip I can use for my project?
What ESP32 should I look at for the following specs:
ESP-NOW support
ADC
DAC
GPIO
WiFi
Bluetooth optional
What dev kit should I consider?
ESP-NOW support
ADC
DAC
GPIO
WiFi
Bluetooth optional
What dev kit should I consider?
- Fri Nov 22, 2024 11:21 pm
- Forum: Hardware
- Topic: Can I use micropython to develop ESP-Now project?
- Replies: 1
- Views: 1293
Can I use micropython to develop ESP-Now project?
Do I have to use C/C++ for an ESP-NOW project, or will micropython work? There are no real timing constraints for the project. All the interactions occur in what I call "human time".