Microduino DIY CoreRF Module - $15 - (Swanton, VT)
Description AVR core board with 802.15.4 Wireless Protocol integrated Supports wireless modules like Zigbee, MAC/6LoWPAN and RF4CE Can be plugged with breadboards and pegboards (2.54mm pin pitch) Open-source hardware circuit design compatible with Arduino programming development environment 22 digital I/O (6 of them supports ADC) and 10 Analog I/O Compatible with other Microduino DIYparts The Microduino DIY CoreRF Module is an AVR core board with 802.15.4 Wireless Protocol integrated. It supports any wireless modules based on 802.15.4 Protocol, including Zigbee, MAC/6LoWPAN and RF4CE.Specifications Adopt ATmega128RFA1 core chip Power supply 3.3 V Flash: 128 KB SRAM: 16 KB EEPROM: 4 KB 22 digital I/O ports (6 of them supports ADC): 2-channel hard serial port: UART0_RX: D0 UART0_TX: D1 UART1_RX: D2 UART1_TX: D3 Support 7-channel PWM: D4, D5, D6, D7, D8, D9, D10 6-channel external interrupt: Interrupt0 (pin SCL) Interrupt1 (pin SDA) Interrupt2 (pin D2) Interrupt3 (pin D3) Interrupt4 (pin D5) Interrupt5 (pin D6) 10 Analog I/O ports: In the module, it is marked with A0, A1, A2, A3, A6, A7, D8(A8), D9(A9), D3(A10) and D4(A11) Each offers 10-bit resolution(0-1024). The measurement range of the analog voltage is from GND to VCC by default Support 1-channel SPI: In the module, it's marked with D13(SCK), D12(MISO), D11(MOSI), D10(SS). Support 1-channel IIC: In the module, it is marked with SDA(D18), SCL(D19).
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