Search found 33 matches

by qheinal
Tue Mar 25, 2025 2:23 am
Forum: ESP32 Arduino
Topic: ESP32 S3 Wroom-1: TFT_ESPI does not work...
Replies: 2
Views: 2014

Re: ESP32 S3 Wroom-1: TFT_ESPI does not work...

it may sound dumb but have you checked that you connected Reset (RST) and DC to the lcd and mcu. If reset or dc is not connected u will just see a white screen when backlight is on. Reset needs to held High for lcd to work
by qheinal
Mon Mar 24, 2025 4:43 pm
Forum: ESP32 Arduino
Topic: Esp32 as BT Hid Gamepad
Replies: 2
Views: 1118

Re: Esp32 as BT Hid Gamepad

i kind solved the issue by removing 1 byte from reportData and setting debug to none. It seems that when i was using verbose debug in arduino ide it causes windows to ignore hid reports because of some timing issue? idk and so while i was seeing it send 16 bytes in verbose mode i thought the ...
by qheinal
Sun Mar 23, 2025 6:16 pm
Forum: ESP32 Arduino
Topic: Esp32 as BT Hid Gamepad
Replies: 2
Views: 1118

Esp32 as BT Hid Gamepad

i have tried for a couple of days to get esp32 BT Hid to work but it seems im missing something but i cant quite figure out what. It connects and shows up as a game controller in device manager however pressing buttons / simulating a button press does nothing. Windows doesnt even register it or hid ...
by qheinal
Wed Jan 01, 2025 2:15 pm
Forum: Hardware
Topic: Is there anyway to increase the drive strength of Xtal_P and Xtal_N on esp32 s2 Mini.?
Replies: 0
Views: 932

Is there anyway to increase the drive strength of Xtal_P and Xtal_N on esp32 s2 Mini.?

Is there anyway to increase the drive strength of Xtal_P and Xtal_N on esp32 s2 Mini. Theres the webmos boards which have a issue with the external oscillator circuit. On a good dev board the crystal outputs 700mV to 1000mV but on the webmos board i have, some that have a range from 415mv to 800mV ...
by qheinal
Tue Dec 31, 2024 11:04 pm
Forum: ESP32 Arduino
Topic: ESP32-S2 reboots when WiFi is used
Replies: 24
Views: 32380

Re: ESP32-S2 reboots when WiFi is used

To anyone still having issues with s2 mini (s2 not connecting to router etc). The main issue is External crystal circuit. The load capacitors are most likely wrong values or bad. With an oscillascope Gnd connect to esp32s gnd then touch the probe(x10) to either C1 or C4 capacitors conneced to either ...
by qheinal
Thu Dec 12, 2024 4:59 pm
Forum: General Discussion
Topic: Esp32 C3 seems to perform better than s2 at same clock speed
Replies: 2
Views: 2989

Re: Esp32 C3 seems to perform better than s2 at same clock speed

I didnt want the compiler to optimize away the loop. Without "asm volatile("" : : : "memory")" the compiler just removes the loop so the micros() reports 0. Also found a better way to keep loop so i removed "asm volatile("" : : : "memory")" and @160 MHz s2 went from 12 to 14 MIops but c3 is still ...
by qheinal
Thu Dec 12, 2024 3:02 pm
Forum: General Discussion
Topic: Esp32 C3 seems to perform better than s2 at same clock speed
Replies: 2
Views: 2989

Esp32 C3 seems to perform better than s2 at same clock speed

I have written some code to benchmark the Integer performance of esp32 series chips i have ( esp32, esp32 s2, esp32 s3 and esp32 c3). I know Risc v is still being optimized but somehow benchmark shows that esp32 C3 @ 160 MHz (DIO) performs better than chips like esp32 s2 @ 160 MHz ( QIO ). I dont ...
by qheinal
Thu Dec 12, 2024 2:39 pm
Forum: Hardware
Topic: Flash Boot problems with ESP32-C3 (External Flash)
Replies: 2
Views: 2001

Re: Flash Boot problems with ESP32-C3 (External Flash)

You cannot use the same chip select if using external flash. And i dont think they recommend using the same pins as internal flash. I have a bunch of c3 devkits that dont have internal flash and use external. But the designer didnt connect Hold and Wp to the c3. They simply connected it to 3.3v ...
by qheinal
Wed May 15, 2024 9:49 pm
Forum: General Discussion
Topic: Defective chip or broken software?
Replies: 0
Views: 1055

Defective chip or broken software?

i have 3 wemos s2 mini boards and all of them can scan for wifi networks but only 1 can connect to wifi in the three. I have tested the resistors and capacitors around the chip of the good one and measured the others and they all are the same. Is the chip just defective? because it seems like abit ...
by qheinal
Mon Apr 01, 2024 6:22 pm
Forum: General Discussion
Topic: L32R instruction with xtensa-esp32-elf-as assembler
Replies: 2
Views: 1558

L32R instruction with xtensa-esp32-elf-as assembler

Im using xtensa-esp32-elf-as compiler to compile asm code but if i use the L32R instruction it compiles to 0x410000. Which means the address i specified isnt actual included in the instruction. If i use L32I it works as expected. Am i missing something?

in the code im just doing this

[code]L32R ...

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