I have two Lidar Lites, connected to one APM. I have no issue with getting data from one of them, i use the code below
#include <I2C.h>
#define LIDARLite_ADDRESS 0x62 // Default I2C Address of LIDAR-Lite.
#define RegisterMeasure 0x00 // Register to write to initiate ranging.
#define MeasureValue 0x04 // Value to initiate ranging.
#define RegisterHighLowB 0x8f // Register to get both High and Low bytes in 1 call.
void setup(){
Serial.begin(9600); //Opens serial connection at 9600bps.
I2c.begin(); // Opens & joins the irc bus as master
delay(100); // Waits to make sure everything is powered up before sending or receiving data
I2c.timeOut(50); // Sets a timeout to ensure no locking up of sketch if I2C communication fails
}
void loop(){
// Write 0x04 to register 0x00
uint8_t nackack = 100; // Setup variable to hold ACK/NACK resopnses
while (nackack != 0){ // While NACK keep going (i.e. continue polling until sucess message (ACK) is received )
nackack = I2c.write(LIDARLite_ADDRESS,RegisterMeasure, MeasureValue); // Write 0x04 to 0x00
delay(1); // Wait 1 ms to prevent overpolling
}
byte distanceArray[2]; // array to store distance bytes from read function
// Read 2byte distance from register 0x8f
nackack = 100; // Setup variable to hold ACK/NACK resopnses
while (nackack != 0){ // While NACK keep going (i.e. continue polling until sucess message (ACK) is received )
nackack = I2c.read(LIDARLite_ADDRESS,RegisterHighLowB, 2, distanceArray); // Read 2 Bytes from LIDAR-Lite Address and store in array
delay(1); // Wait 1 ms to prevent overpolling
}
int distance = (distanceArray[0] << 8) + distanceArray[1]; // Shift high byte [0] 8 to the left and add low byte [1] to create 16-bit int
// Print Distance
Serial.println(distance);
}
i can get the distance fine, now have two connected, as follows
So my noob question is how to i get data from the 2, my guess is the wiring is ok.
I am using the code from https://github.com/PulsedLight3D/LIDARLite_v2_Arduino_Library
any help would be appreciated. thanks.

changeAddressMultisensorfunction in your setup(). See Change I2C Address for Single Sensor You may have to use CTRL+F (find on page) "Change I2C Address for Single Sensor" as the href doesn't seem to work right on chrome or firefox.