Demonstrates the MAX44000 library and some of the features of the MAX44000
Dependencies: MAX44000 ard2pmod mbed
Fork of ALS_ARD2PMOD_Demo by
MAX44000PMB1 Demonstration
This demonstrates some of the capabilities of the MAX44000. This is written to work with the MAXREFDES72# adapter board and the MAX44000PMB1 peripheral module. It uses the standard Arduino pin names and it will compile for most arduino form-factor mbed boards. To run this demonstration you will need:
- MAX44000PMB1 Ambient Light / Proximity Sensor Peripheral Module
- MAXREFDES72# Pmod Adapter for Arduino Platforms
- An mbed enabled board with an Arduino compatible socket. We recommend the MAX32600MBED
In this demonstration the LEDs are changed based on data from the sensor.
- LED1 toggles when something is first detected by the proximity sensor.
- LED2 indicates when the Ambient Light Sensor reads greater than a set value (alsLim).
- LED3 will stay on whenever something is detected by the proximity sensor and stay on for an additional 5s after it is no longer detected.
Note: Some boards use D13 for an LED signal, so this example uses the second row (row B, pins 7 through 12) of the Pmod connector.
Tested platform boards
Links to external supporting material
- MAX44000PMB1 Ambient Light / Proximity Sensor Peripheral Module
- MAXREFDES72# Pmod Adapter for Arduino Platforms
- MAX32600MBED
Diff: main.cpp
- Revision:
- 2:405cc6627ffb
- Parent:
- 1:03aeb304d3b3
- Child:
- 3:61cc32322303
--- a/main.cpp Sun Jun 22 23:04:51 2014 +0000 +++ b/main.cpp Mon Jun 23 05:03:54 2014 +0000 @@ -1,13 +1,32 @@ +/* MAX44000 Ambient Light Sensor / Proximity Sensor Demo + * This demonstrates some of the capabilities of the MAX44000. + * + * This is written to work with the ARD2PMD adapter board and + * the MAX44000PMB1. It uses the standard Arduino pin names + * and it will compile for most arduino form-factor mbed boards. + * + * LED1 toggles when something is first detected by the proximity sensor. + * LED2 indicates when the Ambient Light Sensor reads grater than alsLim. + * LED3 will stay on whenever something is detected by the proximity sensor + * and stay on for an additional 5s after it is no longer detected. + * + * The following boards have been tested to work: + * FRDM-KL25Z, FRDM-K64F + * Seeeduino Arch and Arch Pro (LEDs inverted) + * ST Nucleo F401RE (only one LED) + * + * Some boards use D13 for an LED signal, so this example uses the second + * row (row B, pins 7 through 12) of the Pmod connector. + */ + #include "mbed.h" #include "MAX14661.h" MAX14661 mux(D14, D15); I2C i2c(D14, D15); -DigitalOut r(LED1); -DigitalOut g(LED2); -DigitalOut b(LED3); -//DigitalIn pa3(D12); // Set as input to remove load from PA3 -//DigitalIn pa4(D13); // Set as input to remove load from PA4 +DigitalOut tog(LED1); +DigitalOut als(LED2); +DigitalOut dly(LED3); DigitalIn pb3(D6); // Set as input to remove load from PB3 DigitalIn pb4(D7); // Set as input to remove load from PB4 @@ -18,12 +37,7 @@ { char cmd[2]; -/* // SDA(D14) + PA4(D13) + PB4(D7) , SCL(D15) + PA3(D12) + PB3(D6) - mux.setAB((MAX14661::SW10 | MAX14661::SW11 | MAX14661::SW08), - (MAX14661::SW09 | MAX14661::SW12 | MAX14661::SW07)); -*/ - - // SDA (D14) + PB4 (D7) SCL (D15) + PB3 (D6) + // SDA (D14) + PB4 (D7) SCL (D15) + PB3 (D6) mux.setAB((MAX14661::SW10 | MAX14661::SW08), (MAX14661::SW09 | MAX14661::SW07)); @@ -41,31 +55,31 @@ bool lastProx = false; int offDelay = 0; - r = false; - g = false; - b = false; + tog = false; + als = false; + dly = false; while (true) { wait (0.02); cmd[0] = 0x04; // ALS Data Register i2c.write(alsAddr, cmd, 1); i2c.read(alsAddr, cmd, 1); - g = (cmd[0] < alsLim); + als = (cmd[0] < alsLim); cmd[0] = 0x16; // Prox Data Register i2c.write(alsAddr, cmd, 1); i2c.read(alsAddr, cmd, 1); if (cmd[0]) { if (!lastProx) { - r = !r; + tog = !tog; } lastProx = true; offDelay = 250; - b = false; + dly = false; } else { lastProx = false; } if (offDelay > 0) { offDelay -= 1; } - else { b = true; } + else { dly = true; } } } \ No newline at end of file