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Wireless-Tag~

SC01 Plus~

Features~

The SC01 Plus uses an ESP32-S3-WROVER module with a 3.5-inch capacitive touch display. openHASP can take advantage of the 320x480 resolution to show a large custom user-interface. On the back there are some ports with GPIOs so you can expand the capabilities as needed.

Pros Cons
480x320 8-bit Display Flashing the initial bootloader
2 MB PSram Serial Flashing tool recommended
Capacitive Touchscreen JST 1.25mm Expansion headers
IPS Viewing angles
Sleek design

The development board is powered via USB Type-C.

WT32-SC01~

Features~

The WT32-SC01 incorporates an ESP32-WROVER-B module with a 3.5-inch capacitive touch display. openHASP can take advantage of the 320x480 resolution to show a large custom user-interface. On the back there is an expansion port with GPIOs so you can expand the capabilities as needed.

Pros Cons
480x320 Display 4 MB flash on basic model
8 MB PSram Viewing angle in landscape mode
Capacitive Touchscreen Mounting holes placement

The development board is powered via USB Type-C. The basic version comes with only 4MB SPI Flash but there is a better WT32-SC01(16MB) SKU with a larger flash chip. Both models have 8MB of PSRAM.

Tip

Please consider getting the model with 16MB flash size as it is more suitable for the large screen.

Note

The expansion connector has a 2.0mm pitch female header instead of the more common 2.54mm pitch.

Datasheet

3D Printed Case~

WT-86-32-3ZW1~

The Wireless-Tag WT-86-32-3ZW1 is a 86x86mm touchscreen with 4 relays that can be mounted in a standard 86x86mm wall-box. It is currently only available from Alibaba for around US $40 excluding shipping.

Features~

Pros Cons
16 MB flash Display ghosting
8 MB PSram 320 kB SRAM (ESP32-S2)
Price Can't fit in EU workbox
Capacitive Touchscreen

Issues~

One issue we've noticed is temporary ghosting on the display reported by multiple users. When showing a UI with white, cyan or bright colors on a dark background, a dim ghost image of these bright colors can linger on the screen for some time after changing pages.

If you notice this issue on your device, please report back in this Github discussion thread.

Dimensions~

Note

The size of the PSU unit does not fit a regular EU wall-box and mounting it in a US wall-box needs testing.

Flashing~

All pins are conveniently broken out on the 2mm pitch female header. Make sure the USB port can deliver enough power. It is best to use a powered USB hub since most PC ports can not power the whole device.

esptool.py --port COM6 erase_flash
esptool.py --port COM6 write_flash 0x0 wt-86-32-3zw1_full_16MB_v0.6.3-dev_88a478d.bin --verify

Last update: 2022-11-19