18. 艾鍗子卡for Raspberry Pi 2/3 pinout
FlashCE0
EEPROM
0x50
EEPROM
0x50
PL2303
CC2500CE1
The GPIO pins can draw 50mA safely, distributed across all the pins; an individual GPIO pin can only safely draw 16mA.
21. Hands on
cd /home/pi ; tar zxvf bcm2835_clib.tar.gz
cd bcm2835_clib
cd examples/blink
./build.sh ==> 產生4個執行檔
build.sh (shell script)
使用gcc 編譯C程式,
如: gcc test.c -o test
範例程式目錄結構 ==>
22. Hands on程式執行
# LED 閃爍
sudo ./blink
# PIR
sudo ./pir
# PIR +buzzer
sudo ./pir_buzzer
# Relay on/off
sudo ./relay