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RTC battery, PCB edge, USB C socket, JST SH 1mm 4 pin |
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prototype board |
SPI, I2C, USB, PWM, I2S, MMC, GPIO, SDIO, Bluetooth, WiFi, SD, eMMC, 2 - wire, 8/16bit parallel, Digital Video Port |
65.25x26x1.2mm |
IEEE 802.11b/g/n, Bluetooth 5.0 |
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4MB FLASH, 320kB SRAM, 384kB ROM |