TouchInterrupt not work on T8 ESP32 #12006
Description
Board
ESP32_Core_board_v2
Device Description
On gpio33 10 cm wire.
Hardware Configuration
No, only wire on gio33.
Version
v3.3.3
Type
Bug
IDE Name
VSCode
Operating System
Ubuntu
Flash frequency
80MHz
PSRAM enabled
no
Upload speed
921600
Description
Change sketch TouchInterrupt to use T8, not work.
Touch wire not work. I try change touchSetDefaultThreshold(5); from 0 to 50 not work.
On T0, T2 - T7 and T9 work.
Sketch
/*
This is an example how to use Touch Intrrerupts
The bigger the threshold, the more sensible is the touch
*/
int threshold = 0; // if 0 is used, benchmark value is used. Its by default 1,5% change, can be changed by touchSetDefaultThreshold(float percentage)
bool touch8detected = false;
void gotTouch8()
{
touch8detected = true;
}
void setup()
{
Serial.begin(115200);
delay(1000); // give me time to bring up serial monitor
// Optional: Set the threshold to 5% of the benchmark value. Only effective if threshold = 0.
touchSetDefaultThreshold(5);
Serial.println("ESP32 Touch Interrupt Test");
touchAttachInterrupt(T8, gotTouch8, threshold);
}
void loop()
{
if (touch8detected)
{
touch8detected = false;
Serial.println("Touch 8 detected");
}
// if (touch8detected)
// {
// touch8detected = false;
// if (touchInterruptGetLastStatus(T8))
// {
// Serial.println(" --- T8 Touched");
// }
// else
// {
// Serial.println(" --- T8 Released");
// }
// }
}Debug Message
ets Jun 8 2016 00:22:57
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
ets Jun 8 2016 00:22:57
rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:4980
load:0x40078000,len:16612
load:0x40080400,len:3480
entry 0x400805b4
[ 3][D][esp32-hal-cpu.c:276] setCpuFrequencyMhz(): PLL: 480 / 2 = 240 Mhz, APB: 80000000 Hz
=========== Before Setup Start ===========
Chip Info:
------------------------------------------
Model : ESP32
Package : D0WD-Q6
Revision : 0.00
Cores : 2
CPU Frequency : 240 MHz
XTAL Frequency : 40 MHz
Features Bitfield : 0x00000032
Embedded Flash : No
Embedded PSRAM : No
2.4GHz WiFi : Yes
Classic BT : Yes
BT Low Energy : Yes
IEEE 802.15.4 : No
------------------------------------------
INTERNAL Memory Info:
------------------------------------------
Total Size : 378936 B ( 370.1 KB)
Free Bytes : 337568 B ( 329.7 KB)
Allocated Bytes : 34092 B ( 33.3 KB)
Minimum Free Bytes: 331940 B ( 324.2 KB)
Largest Free Block: 110580 B ( 108.0 KB)
------------------------------------------
Flash Info:
------------------------------------------
Chip Size : 4194304 B (4 MB)
Block Size : 65536 B ( 64.0 KB)
Sector Size : 4096 B ( 4.0 KB)
Page Size : 256 B ( 0.2 KB)
Bus Speed : 80 MHz
Flash Frequency : 80 MHz (source: 80 MHz, divider: 1)
Bus Mode : QIO
------------------------------------------
Partitions Info:
------------------------------------------
nvs : addr: 0x00009000, size: 20.0 KB, type: DATA, subtype: NVS
otadata : addr: 0x0000E000, size: 8.0 KB, type: DATA, subtype: OTA
app0 : addr: 0x00010000, size: 1280.0 KB, type: APP, subtype: OTA_0
app1 : addr: 0x00150000, size: 1280.0 KB, type: APP, subtype: OTA_1
spiffs : addr: 0x00290000, size: 1408.0 KB, type: DATA, subtype: SPIFFS
coredump : addr: 0x003F0000, size: 64.0 KB, type: DATA, subtype: COREDUMP
------------------------------------------
Software Info:
------------------------------------------
Compile Date/Time : Nov 10 2025 15:39:14
Compile Host OS : linux
ESP-IDF Version : v5.5.1-418-gf1a1df9b2e
Arduino Version : 3.3.3
------------------------------------------
Board Info:
------------------------------------------
Arduino Board : ESP32_DEV
Arduino Variant : esp32
Arduino FQBN : esp32:esp32:esp32:JTAGAdapter=default,PSRAM=disabled,PartitionScheme=default,CPUFreq=240,FlashMode=qio,FlashFreq=80,FlashSize=4M,UploadSpeed=921600,LoopCore=1,EventsCore=1,DebugLevel=debug,EraseFlash=none,ZigbeeMode=default
============ Before Setup End ============
ESP32 Touch Interrupt Test
=========== After Setup Start ============
INTERNAL Memory Info:
------------------------------------------
Total Size : 378936 B ( 370.1 KB)
Free Bytes : 334512 B ( 326.7 KB)
Allocated Bytes : 36732 B ( 35.9 KB)
Minimum Free Bytes: 328920 B ( 321.2 KB)
Largest Free Block: 110580 B ( 108.0 KB)
------------------------------------------
GPIO Info:
------------------------------------------
GPIO : BUS_TYPE[bus/unit][chan]
--------------------------------------
1 : UART_TX[0]
3 : UART_RX[0]
33 : TOUCH[8]
============ After Setup End =============
Touch 8 detected
Other Steps to Reproduce
No response
I have checked existing issues, online documentation and the Troubleshooting Guide
- I confirm I have checked existing issues, online documentation and Troubleshooting guide.