eyhc
/
Read-Sensor-Resistances
mirror of https://github.com/Seal-Ammonia/Read-Sensor-Resistances.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Update nano_c_mk1.ino

This commit is contained in:
Eric Yu 2023-01-31 22:45:45 -08:00 committed by GitHub
parent f78d086f6b
commit 96dc63afe1
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
nano_c_mk1/nano_c_mk1.ino
View File

@ -2,13 +2,13 @@
#define WAIT_TIME 1000UL // default wait time each value read
#define ADS_MAX 4 // # of analog input pins of an ADS1115
#define VOLTAGE_RANGE 6.144f // ADS1115 default gain (+/- 6.144V)
#define VOLTAGE_RANGE 6.144f // ADS1115 default gain (+/- 6.144V). Change this number smaller will reduced its actual magnutude, and vice versa
#define CONST_I2C 32768 // a constant value
unsigned long currTime; // non-blocking timer
Adafruit_ADS1115 adc;
int i; // loop iterators
float adcReadings[ADS_MAX];
float adcReadings[ADS_MAX]; // buffer to hold all values read from an adc
void setup() {
Wire.begin();
@ -18,12 +18,13 @@ void setup() {
}
void loop() {
// TODO: The current reading is too slow for even the arduino's own ide's grapher cannot parse the data in time
// TODO: The current reading is too slow beacuse `readADC_SingleEnded` is a blocking function. Not ideal on real-application.
if (millis() - currTime >= WAIT_TIME) { // non-blocking time delay
for (i = 0; i < ADS_MAX; i++) {
adcReadings[i] = adc.readADC_SingleEnded(i) * VOLTAGE_RANGE / CONST_I2C;
adcReadings[i] = adc.readADC_SingleEnded(i) * VOLTAGE_RANGE / CONST_I2C; // this part can just read the adc. The conversion part could done in the Python code for flexibility
}
Serial.print("[");
// two seperate for loops for read adc and serial write to make it seems less laggy. again, this is completly wrong and need to replace it to something more non-blocking
for (i = 0; i < ADS_MAX; i++) {
Serial.print(adcReadings[i]);
if (i != ADS_MAX - 1) {