Touch and Pin Deep Sleep Wakeup Doesn't Work on ESP32

[rschiefer]

Library/API/IoT binding

ESP32

Visual Studio version

VS2022 (17.1.1)

.NET nanoFramework extension version

2022.2.0.13

Target name(s)

ESP32_REV0

Firmware version

1.8.0.279

Device capabilities

** .NET nanoFramework extension v2022.2.0.13 loaded **
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System Information
HAL build info: nanoCLR running @ ESP32 built with ESP-IDF v4.4.1
Target: ESP32
Platform: ESP32

Firmware build Info:
Date: Jun 3 2022
Type: MinSizeRel build, chip rev. >= 0, without support for PSRAM
CLR Version: 1.8.0.279
Compiler: GNU ARM GCC v8.4.0

OEM Product codes (vendor, model, SKU): 0, 0, 0

Serial Numbers (module, system):
00000000000000000000000000000000
0000000000000000

Target capabilities:
Has nanoBooter: NO
IFU capable: NO
Has proprietary bootloader: YES

AppDomains:

Assemblies:
ConnectedFeederTest, 1.0.0.0
System.Device.I2c, 1.0.3.3
nanoFramework.Runtime.Native, 1.5.4.3
System.Buffers.Binary.BinaryPrimitives, 1.1.0.0
Iot.Device.Vl53L0X, 1.1.0.0
System.Diagnostics.Stopwatch, 1.1.0.0
nanoFramework.Hardware.Esp32, 1.3.6.3
System.IO.Streams, 1.0.0.2
nanoFramework.System.Collections, 1.4.0.3
mscorlib, 1.12.0.4
System.IO.Ports, 1.0.7.1
nanoFramework.Hardware.Esp32.Rmt, 1.2.3.5
System.Device.Gpio, 1.0.4.3
nanoFramework.Runtime.Events, 1.10.0.3
System.Math, 1.4.4.3
nanoFramework.System.Text, 1.1.3.3

Native Assemblies:
mscorlib v100.5.0.17, checksum 0x004CF1CE
nanoFramework.Runtime.Native v100.0.9.0, checksum 0x109F6F22
nanoFramework.Hardware.Esp32 v100.0.7.3, checksum 0xBE7FF253
nanoFramework.Hardware.Esp32.Rmt v100.0.3.0, checksum 0x0A915860
nanoFramework.Device.OneWire v100.0.4.0, checksum 0xB95C43B4
nanoFramework.Networking.Sntp v100.0.4.4, checksum 0xE2D9BDED
nanoFramework.ResourceManager v100.0.0.1, checksum 0xDCD7DF4D
nanoFramework.System.Collections v100.0.1.0, checksum 0x2DC2B090
nanoFramework.System.Text v100.0.0.1, checksum 0x8E6EB73D
nanoFramework.Runtime.Events v100.0.8.0, checksum 0x0EAB00C9
EventSink v1.0.0.0, checksum 0xF32F4C3E
System.IO.FileSystem v1.0.0.0, checksum 0x3AB74021
System.Math v100.0.5.4, checksum 0x46092CB1
System.Net v100.1.5.0, checksum 0x5BAB8CB3
System.Device.Adc v100.0.0.0, checksum 0xE5B80F0B
System.Device.Dac v100.0.0.6, checksum 0x02B3E860
System.Device.Gpio v100.1.0.4, checksum 0xB6D0ACC1
System.Device.I2c v100.0.0.1, checksum 0xFA806D33
System.Device.Pwm v100.1.0.4, checksum 0xABF532C3
System.IO.Ports v100.1.6.0, checksum 0xB798CE30
System.Device.Spi v100.1.2.0, checksum 0xB6C4B3BD
System.Device.Wifi v100.0.6.4, checksum 0x1C1D3214
Windows.Storage v100.0.2.0, checksum 0x954A4192

++++++++++++++++++++++++++++++++
++ Memory Map ++
++++++++++++++++++++++++++++++++
Type Start Size
++++++++++++++++++++++++++++++++
RAM 0x3ffe49ac 0x0001b000
FLASH 0x00000000 0x00400000

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++ Flash Sector Map ++
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Region Start Blocks Bytes/Block Usage
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
0 0x00010000 1 0x1A0000 nanoCLR
1 0x001B0000 1 0x1F0000 Deployment
2 0x003C0000 1 0x040000 Configuration

+++++++++++++++++++++++++++++++++++++++++++++++++++
++ Storage Usage Map ++
+++++++++++++++++++++++++++++++++++++++++++++++++++
Start Size (kB) Usage
+++++++++++++++++++++++++++++++++++++++++++++++++++
0x003C0000 0x040000 (256kB) Configuration
0x00010000 0x1A0000 (1664kB) nanoCLR
0x001B0000 0x1F0000 (1984kB) Deployment

Deployment Map
Empty

Description

Followed sample for deep sleep and wake. Timer wake worked. Touch and gpio pin wake did not.

How to reproduce

Use deep sleep/wake sample

Expected behaviour

ESP32 wakes up from deep sleep on touch or pin when following sample.

Screenshots

No response

Sample project or code

No response

Aditional information

No response

[MichaelWheeley]

I'm assuming the code sample mentioned is this one? Hardware.ESP32

It is unfortunate in the sample code that many items are commented out.
It is not clear what combination is required to create a clean wake on touch. Reading Arduino examples I think that Sleep.EnableWakeupByPin(WakeupGpioPin pin, int level) is a prior requirement for touch since the sensitivity is defined in the 'level' argument. Then the call to Sleep.EnableWakeupByTouchPad().

It is also not clear in the following code that it is an analog level and not a logic level. For logic levels it appears Sleep.EnableWakeupByMultiPins() is preferred.
// // Wakeup when Pin12 is high // Sleep.EnableWakeupByPin(Sleep.WakeupGpioPin.Pin12, 1);

p.s. I'm writing these notes prior to my further testing, so please consider these my observations only.

p.p.s. I was relating this to what I read here Arduino examples

[rschiefer]

Confirmed this configuration successfully enables touch, thanks!

        Sleep.EnableWakeupByMultiPins(Sleep.WakeupGpioPin.Pin4, Sleep.WakeupMode.AnyHigh);
        Sleep.EnableWakeupByTouchPad();
        Sleep.StartDeepSleep();

[MichaelWheeley]

nice!

• Sample might need some updates to make it clearer, if I have time I can have a go
• I generated pull with changes to Sleep documentation to make it clearer

mrw

[MichaelWheeley]

@rschiefer

        Sleep.EnableWakeupByMultiPins(Sleep.WakeupGpioPin.Pin4, Sleep.WakeupMode.AnyHigh);
        Sleep.EnableWakeupByTouchPad();
        Sleep.StartDeepSleep();

I've tried the above against ESP32 and ESP32S2

• in both cases the wakeup cause returned by GetWakeupCause() is 3=ext1 and NOT 5=touchpad,
• also a call to GetWakeupTouchpad() returns max (which is 10 for ESP32, 15 for ESP32S2) indicating that touchpad is not active
• but at least it is waking up by ext1
• there is probably further unimplemented code in the capacitive settings that are needed to get the touch part working

[mimimiaomiao1]

Confirmed this configuration successfully enables touch, thanks!

        Sleep.EnableWakeupByMultiPins(Sleep.WakeupGpioPin.Pin4, Sleep.WakeupMode.AnyHigh);
        Sleep.EnableWakeupByTouchPad();
        Sleep.StartDeepSleep();

Which screen model can I use?