A stackable universal prototyping module for use with M5Stack Core development boards. Spare plastic frames are available here. For more information and for help getting started, click here Product Features * Hole Size: 0.039" 1mm (CNC Drilled) * Hole Pitch: 0.1 in - (2.54 mm) * Entire Hole Quantity: 260 Holes * Product Size：54.2mm x 54.2mm x 12.8mm * Product weight：11.5g Interface LINE0 LINE1 GND IO35(ADC1) GND IO36(ADC2) GND EN IO23(MOSI) IO25(DAC0) IO19(MISO) IO26(DAC1) IO18(EXTSCK) 3V3 IO3(U1RX) IO1(U1TX) IO16(U2RX) IO17(U2TX) IO21(I2CSDA) IO22(I2CSCL) IO2 IO5 IO12(I2SSCLK) IO13 IO15(I2SOUT) IO0 HPOWR IO34 HPOWR 5V HPOWR BAT https://elecena.pl/product/22719611/m5stack-proto-module-with-extension-bus-socket 2023-03-07 https://elecena.pl/product/22719611/m5stack-proto-module-with-extension-bus-socket 2023-12-27 https://elecena.pl/product/22719611/m5stack-proto-module-with-extension-bus-socket 2024-09-19 https://elecena.pl/product/22719611/m5stack-proto-module-with-extension-bus-socket 2024-11-29 https://elecena.pl/product/22719611/m5stack-proto-module-with-extension-bus-socket 2024-11-30 https://elecena.pl/product/22719611/m5stack-proto-module-with-extension-bus-socket 2025-04-30 https://elecena.pl/product/22719611/m5stack-proto-module-with-extension-bus-socket 2025-08-05 https://elecena.pl/product/22719611/m5stack-proto-module-with-extension-bus-socket 2025-11-28 https://elecena.pl/product/22719611/m5stack-proto-module-with-extension-bus-socket 2025-11-29