STM32F407VGT6 ARM Cortex-M4 32bit MCU Soldering Iron so you only need 7

so you only need 7 microcontroller pins (3-columns and 4-rows) to scan through the pad

Internal 8MHz RC with x6 PLL option

achieving the camera design of double stream

Infrared emission sensor module KY-005

18650 Battery Holder Cable Color: red and black

STM32F407VGT6 ARM Cortex-M4 32bit MCU Soldering Iron so you only need 7The STM32F405xx and STM32F407xx family is based on the high performance ARMCortex M4 32 bit RISC core operating at a frequency of up to 168 MHz. The Cortex M4 core features a Floating point unit (FPU) single precision which supports all ARM single precision data processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security. The STM32F405xx and