multiple ds2438Z on bus

Using Arduino Programming Questions
1

Hello,

I am trying to use this code to talk to multiple sensors.

Has anyone changed this code for multiple devices?

Thanks,

2

The ds2438 temperature and voltage example has this code at the beginning:

// define the 1-Wire address of the DS2438 battery monitor here (lsb first)
uint8_t DS2438_address[] = { 0x26, 0x45, 0xe6, 0xf7, 0x00, 0x00, 0x00, 0x4e };

OneWire ow(ONE_WIRE_PIN);
DS2438 ds2438(&ow, DS2438_address);

void setup() {
    Serial.begin(9600);
    ds2438.begin();
}

To make it handle a small number of additional sensors you could change it to this:

// define the 1-Wire address of the DS2438 battery monitor here (lsb first)
uint8_t DS2438_address_1[] = { 0x26, 0x45, 0xe6, 0xf7, 0x00, 0x00, 0x00, 0x4e };
uint8_t DS2438_address_2[] = { 0x26, 0x45, 0xe6, 0xf7, 0x00, 0x00, 0x00, 0x4e };
uint8_t DS2438_address_3[] = { 0x26, 0x45, 0xe6, 0xf7, 0x00, 0x00, 0x00, 0x4e };

OneWire ow(ONE_WIRE_PIN);
DS2438 ds2438_1(&ow, DS2438_address_1);
DS2438 ds2438_2(&ow, DS2438_address_2);
DS2438 ds2438_3(&ow, DS2438_address_3);
void setup() {
    Serial.begin(9600);
    ds2438_1.begin();
    ds2438_2.begin();
    ds2438_3.begin();
}

You then must do a similar modification of the code in the loop() function so that it handles ds2438_1, ds2438_2 and ds2438_3 instead of just ds2438.
If you are going to add a lot more than this, you'd be better off using an array of addresses and an array of the DS2438 objects.

Pete