VMA453
V. 01
–
06/05/2020
4
©Velleman nv
7.
VMA453/ADS1115 16-Bit ADC Module I
2
C Addressing
The ADS11x5 chips have a base 7-bit I
2
C address of 0x48 (1001000) and a clever addressing
scheme that allows four different addresses using just one address pin (named
ADDR
for
ADDRess). To program the address, connect the address pin as follows:
o
0x48 (1001000) ADDR
→
GND
o
0x49 (1001001) ADDR
→
VDD
o
0x4A (1001010) ADDR
→
SDA
o
0x4B (1001011) ADDR
→
SCL
Address 0x48 (1001000)
Address 0x49 (1001001)
address pin connected to ground
address pin connected to VDD
Address 0x4A (1001010)
Address 0x4B (1001011)
address pin connected to SDA
address pin connected to SCL
8.
Example
1.
Connect the VMA453 to the VMA100 (UNO) as follows:
VMA453
VMA100
GND
GND
GND
ADDR (I
2
C 0x48)
5V
VCC
3.3V
A0
SDA
SDA
SCL
SCL
Please note that we will use the 3.3 V from the VMA100 to be measured by A0 (3.3 V
→
A0).
Summary of Contents for VMA453
Page 1: ...VMA453 USER MANUAL 2...
