SquachWatch Flasher

FLASH YOUR DETECTOR

checking latest version…

1 PICK YOUR BOARD

Code on the back of your board (optional):

Cheap Yellow Displays have a code like ESP32-2432S028R on the back. The last letter is the touch: R resistive (press), C capacitive (tap). Enter JC2432W328C to select the named DIYmalls option.
Freenove boards say FNK0103 or FNK0104.
Not on the list? Tell us what it is on GitHub.

The 2.8" CYD ships with one of two display drivers depending on the batch, and there's no way to tell from the outside. Got a solid white screen? It's not broken: untick 80 MHz and flash again, and if it's still white, flash the other 2.8" option above.

Or pick from the list:

2 INSTALL

Your browser can't do this. Flashing needs Web Serial — Firefox, Chrome, Edge or another Chromium browser, on a computer. Phones and tablets can't do it at all, whatever browser they're running. This page needs to be loaded over HTTPS to flash a device.

Plug your SquachWatch-CYD into this computer over USB.
Click Connect & Install above.
Pick the right serial port from the browser's popup.
Click Install and leave it be — don't unplug until it says done.

Works in Firefox / Chrome / Edge / Brave on desktop. No app to install — just the browser.

Advanced: overclock

80 MHz screen (faster) About 34 frames a second instead of 20. If the screen stays white or shows torn lines, untick this and flash again.

3 AFTER INSTALLING

Reads the board over USB and says which build it runs.

Sends this computer's clock and time zone to the board.

T-Watch S3 Plus with WARDRIVE on: saves its log for WiGLE.

More about these tools

Download WiGLE File is for a T-Watch S3 Plus with WARDRIVE on (WATCH SETTINGS): it saves every network and device the watch logged, with where, as a WiGLE file you can upload at wigle.net/uploads. The log stays on the watch until you clear it.

After flashing, Set Time & Zone tells the board this computer's clock and time zone over the same cable. The zone is kept for good; the clock lasts until the board is unplugged, and a saved WiFi network puts it back at every boot. A T-Watch has its clock set for it after installing, and keeps the time from then on, even through a flat battery.

>> WHAT IT DETECTS <<

FLOCK CAMFlock Safety license-plate camera

AXONAxon body camera or other LE gear

META GLASSESRay-Ban Meta smart glasses — can record

SKIMMERBluetooth card skimmer

RAVENShotSpotter/Raven gunshot detector

ALPRAutomated license-plate reader

AIRTAGApple AirTag or other FindMy tracker

DRONEDrone broadcasting Remote ID

SAMSUNG TAGSamsung Galaxy SmartTag

GOOGLE TAGGoogle Find My Device tracker

TILETile Bluetooth tracker

CAMERAGeneric WiFi/BLE-connected camera

RING CAMRing doorbell or camera

SquachWatch-CYD is an open-source surveillance detector for the ESP32 "Cheap Yellow Display" board.

Try it in your browser first · Source on GitHub · talkingsasquach.com

Board not showing up as a port? Most CYDs use a CH340 USB chip — grab the driver: Windows · macOS · Linux — most Mac/Linux/ChromeOS machines already have this built in, it's mainly a Windows thing.