The Seeed Studio Minichord Synthesizer (SKU: 114993647) is a versatile hardware platform designed for high-performance integration within a compact 100x72mm form factor. It offers robust visual and imaging capabilities through dedicated MIPI DSI Display and MIPI CSI Camera interfaces, complemented by a standard HDMI output for external monitoring. Connectivity is a core strength of this board, featuring 1 Gigabyte Ethernet (RJ45), a SIM Card Slot, and a MiniPCIe slot to support diverse networking requirements. For data management and peripherals, the device includes a TF Card slot, two USB 2.0 ports, and a USB Type-C OTG port. Developers can take advantage of the 26 PIN GPIO for custom expansions, while the UART Debug Interface and AD Key provide essential tools for system testing and manual control. BananaPi BPI-CM4IO board is design for Banana Pi BPI-CM4 or RPi-CM4. Hardware BPI-CM4 moudule base board interface BPI-CM4 Photo Banana Pi BPI-CM4 Product photo gallery BPI-CM4 Module PIN Out define BPI-CM4 IO GPIO GPIO Pin Name Default Function Function2：GPIO Function3 CON2-P01 VCC-3V3 CON2-P02 DCIN CON2-P03 I2C1_SDA GPIOX-17 CON2-P04 DCIN CON2-P05 I2C1_SCL GPIOX-18 CON2-P06 GND CON2-P07 SPDIF_IN GPIOH_5 CON2-P08 UART_B_TX GPIOX-6 CON2-P09 GND CON2-P10 UART_B_RX GPIOX-7 CON2-P11 GPIOAO-10 CON2-P12 I2SB_SCLK GPIOA-1 CON2-P13 SPDIF_OUT GPIOH-4 CON2-P14 GND CON2-P15 IR-IN GPIOAO-5 CON2-P16 I2S_MCLK GPIOA-0 CON2-P17 VCC-3V3 CON2-P18 I2SB_LRCLK GPIOA-2 CON2-P19 SPI_A-MOSI GPIOX-8 CON2-P20 GND CON2-P21 SPI_A-MISO GPIOX-9 CON2-P22 I2SC_DOUT_DIN_3 GPIOA-7 CON2-P23 SPI_A-SCK GPIOX-11 CON2-P24 SPI_A-SS0 GPIOX-10 CON2-P25 GND CON2-P26 I2SC_DOUT_DIN_0 GPIOA-3 UART specification CON1-P1 GND CON1-P2 UART0-RX CON1-P3 UART0-TX Development Resources BPI-CM4 Base board Schematic BPI-CM4 Base board DXF file
