Golang ADS1113, ADS1114, and ADS1115 interface using periph.io driver
Should be easily extendable for ADS1111, ADS1112, and ADS1113, devices (ADS111x) with very little work. If you are intrested, let me know and we can work togeter to get it to work.
Please make sure to setup your ADS1113, ADS1114, and ADS1115 correctly. Do a search on the internet to find guide. Here is an example of a guide:
https://learn.adafruit.com/adafruit-4-channel-adc-breakouts/
The examples below are from using a Raspberry Pi 3 with I2C1 for the bus and 0x48 for the address. Your setup may be different, if so, your bus and address would need to change in each example.
Tested on Raspberry Pi 3 with ADS1115. Please open an issue if there are any issues.
go get github.com/MichaelS11/go-ads
package main
import (
"fmt"
"github.com/MichaelS11/go-ads"
)
func main() {
// call HostInit once
err := ads.HostInit()
if err != nil {
fmt.Println(err)
}
// create new ads with wanted busName and address.
var ads1 *ads.ADS
ads1, err = ads.NewADS("I2C1", 0x48, "")
if err != nil {
fmt.Println(err)
}
// example changing config gain (2/3 is default, so only an example)
ads1.SetConfigGain(ads.ConfigGain2_3)
// read retry from ads chip
var result uint16
result, err = ads1.ReadRetry(5)
if err != nil {
ads1.Close()
fmt.Println(err)
}
// close ads bus
err = ads1.Close()
if err != nil {
fmt.Println(err)
}
// print results
fmt.Println("result:", result)
volts := (float64(result) / 32767.0 * 5.0)
fmt.Println("volts:", volts)
psi := 360.0*volts - 25.0
fmt.Println("psi:", psi)
}package main
import (
"fmt"
"time"
"github.com/MichaelS11/go-ads"
)
func main() {
// call HostInit once
err := ads.HostInit()
if err != nil {
fmt.Println(err)
}
// create new ads with wanted busName and address
var ads1 *ads.ADS
ads1, err = ads.NewADS("I2C1", 0x48, "")
if err != nil {
fmt.Println(err)
}
// changing config gain
ads1.SetConfigGain(ads.ConfigGain1)
stop := make(chan struct{})
stopped := make(chan struct{})
var result uint16
// get ads chip reading every 5 seconds in background
go ads1.ReadBackground(&result, 5*time.Second, stop, stopped)
// should have at least read the ads chip twice after 15 seconds
time.Sleep(15 * time.Second)
// to stop ReadBackground after done with reading, close the stop channel
close(stop)
// can check stopped channel to know when ReadBackground has stopped
<-stopped
// close ads bus
err = ads1.Close()
if err != nil {
fmt.Println(err)
}
// print results
fmt.Println("result:", result)
volts := (float64(result) / 32767.0 * 5.0)
fmt.Println("volts:", volts)
psi := 360.0*volts - 25.0
fmt.Println("psi:", psi)
} // call HostInit once
err := ads.HostInit()
if err != nil {
fmt.Println(err)
}
// create new ads with wanted busName and address.
var ads1 *ads.ADS
ads1, err = ads.NewADS("I2C1", 0x48, "")
if err != nil {
fmt.Println(err)
}
// example changing config gain (2/3 is default, so only an example)
ads1.SetConfigGain(ads.ConfigGain2_3)
// read from ads chip
var result uint16
result, err = ads1.Read()
if err != nil {
ads1.Close()
fmt.Println(err)
}
// close ads bus
err = ads1.Close()
if err != nil {
fmt.Println(err)
}
// print results
fmt.Println("result:", result)
volts := (float64(result) / 32767.0 * 5.0)
fmt.Println("volts:", volts)
psi := 360.0*volts - 25.0
fmt.Println("psi:", psi)
}