The frame held for exactly 3.7 seconds—the module’s SPI bus maxing out at 24 MHz—then scrambled into noise.
The MT6261DA had a hidden audio ADC. And someone had left it listening. TFT MTK Module V3.0
Lina’s heart hammered. The module V3.0 was cheap, abundant, forgettable. That was its genius. It wasn’t a spy device. It was a passphrase —a physical key hidden in plain sight, disguised as e-waste. The frame held for exactly 3