46 lignes
1.3 KiB
C++
46 lignes
1.3 KiB
C++
/* PCA9655E_3_scan_lib.ino
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does same as PCA9655E_2_scan.ino, but using keybrd library classes
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pictures in PCA9655E_2_scan/
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set port 1 pins
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read and print value of port 0
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measure port 1 pin voltages with a multimeter
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DESTINATION PIN PIN_NUMBER PIN DESTINATION
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x INT 1 24 VDD Teensy LC 3.3V
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SCL AD1 2 23 SDA Teensy LC 18
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GND AD2 3 22 SCL Teensy LC 19
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GND IO0_0 4 21 AD0 SCL
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GND IO0_1 5 20 IO1_6 x
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IO1_1 IO0_2 6 19 IO1_5 x
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GND IO0_3 7 18 IO1_4 x
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GND IO0_4 8 17 IO1_4 x
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GND IO0_5 9 16 IO1_3 x
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x IO0_6 10 15 IO1_2 x
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x IO0_7 11 14 IO1_1 IO0_2 strobe pin
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GND VSS 12 13 IO1_0 x
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*/
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#include <Port_PCA9655E.h>
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#include <Scanner_IOE.h>
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const uint8_t ADDR = 0x18; //I2C address with AD2=GND AD1=SCL AD0=SCL
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Port_PCA9655E port0(ADDR, 0, ~0); //read all pins
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Port_PCA9655E port1(ADDR, 1, 0); //for strobe
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Scanner_IOE scanner_R(HIGH, port1, port0);
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void setup()
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{
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delay(6000);
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Keyboard.print("PCA9655E_scan.ino");
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scanner_R.begin();
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Keyboard.print(" port0_val= ");
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uint8_t port0_val = scanner_R.scan(1<<1); //strobe pin 1
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Keyboard.print(port0_val, BIN); //expect xx000100
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}
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void loop() { }
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