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rubidium_monitor.ino
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rubidium_monitor.ino
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/*
* Rubidium_Monitor by Jonathan Zepp - @DaJMasta
* Version 1.01 - September 25, 2017
* Simple management and serial switching software for my Salvage Rubidium GPSDO project
*
* Version 1.01 - Removed old error condition, tweaked values, changed error indicator LED behavior
*
*/
#include <DallasTemperature.h>
#include <SoftwareSerial.h>
#include <OneWire.h>
#define settlingLED 5
#define stabilizedLED 6
#define tempLED 7
#define tempBus 2
#define gpsRX 9
#define gpsTX 8
#define rbTX 16
#define rbRX 10
#define gpsPPS 3
#define rbPPS 4
#define warmUpTime 3600 //1 hour
#define settleTime 86400 //1 day
#define fullStable 604800 //1 week
#define blinkSpeed 250
#define tempPollSpeed 1000
#define centerTempBoard 51.0
#define centerTempPSU 49.5
#define centerTempRb 54.5
#define allowedTempVariation 5.0
#define maxTempVariation 8.5
#define commandBuffer 16
long gpsUptime, rbUptime, unitUptime, timeToLockGPS, timeToLockRb, countDifferential, blinkTimer, lastTempPoll, tempErrorTime ;
boolean bLastGPSPPS, bLastRbPPS, bTempLED, bSettlingLED, bStabilizedLED, bBlinkTemp, bBlinkSettling, bBlinkStabilized, bBlinkToggle,
bChangeMode, bChangeSerial, bHadTempError ;
byte runMode, serialMode ;
float rbTemp, boardTemp, psuTemp, rbMin, rbMax, boardMin, boardMax, psuMin, psuMax ;
int gpsUnlocks ;
OneWire oneWire(tempBus) ;
DallasTemperature tempSensors(&oneWire) ;
DeviceAddress rbTherm = {0x28, 0xFF, 0xCB, 0x89, 0x01, 0x17, 0x04, 0x18} ; //Addresses of installed sensors, found with "Tester" example sketch
DeviceAddress boardTherm = {0x28, 0xFF, 0x73, 0xDD, 0x00, 0x17, 0x05, 0x4A} ;
DeviceAddress psuTherm = {0x28, 0xFF, 0x7D, 0x88, 0x01, 0x17, 0x04, 0x44} ;
SoftwareSerial rbPort(rbTX, rbRX, SERIAL_8N1) ;
SoftwareSerial gpsPort(gpsTX, gpsRX) ;
void setup() {
Serial.begin(57600) ;
Serial.println("Rubidium GPSDO monitor initializing...") ;
pinMode(settlingLED, OUTPUT) ;
pinMode(stabilizedLED, OUTPUT) ;
pinMode(tempLED, OUTPUT) ;
pinMode(gpsPPS, INPUT) ;
pinMode(rbPPS, INPUT) ;
gpsUptime = 0 ;
rbUptime = 0 ;
unitUptime = 0 ;
timeToLockGPS = 0 ;
timeToLockRb = 0 ;
gpsUnlocks = 0 ;
bLastGPSPPS = digitalRead(gpsPPS) ;
bLastRbPPS = digitalRead(rbPPS) ;
bTempLED = true ;
bSettlingLED = true ;
bStabilizedLED = true ;
bBlinkTemp = false ;
bBlinkSettling = false ;
bBlinkStabilized = false ;
bBlinkToggle = false ;
bChangeMode = true ;
bChangeSerial = false ;
countDifferential = 0 ;
runMode = 0 ;
serialMode = 0 ;
blinkTimer = 0 ;
lastTempPoll = 0 ;
rbTemp = 0 ;
boardTemp = 0 ;
psuTemp = 0 ;
rbMin = 100 ;
rbMax = -100 ;
boardMin = 100 ;
boardMax = -100 ;
psuMin = 100 ;
psuMax = -100 ;
bHadTempError = false ;
updateLEDs() ;
rbPort.begin(9600) ; //Mode 1
gpsPort.begin(9600) ; //Mode 2
rbPort.setTimeout(50) ;
gpsPort.setTimeout(50) ;
tempSensors.begin() ;
if(tempSensors.getDeviceCount() != 3)
Serial.println("Temp sensor(s) not found!") ;
tempSensors.setResolution(rbTherm, 9) ;
tempSensors.setResolution(boardTherm, 9) ;
tempSensors.setResolution(psuTherm, 9) ;
checkPPS() ;
checkTemps() ;
runMode = 1 ;
Serial.println("Initialized!") ;
Serial.println() ;
}
void loop() {
checkPPS() ;
trackTime() ;
if(lastTempPoll + tempPollSpeed <= millis())
checkTemps() ;
if(unitUptime % 60 == 0){
if(bHadTempError && !bBlinkTemp && runMode > 2){
runMode = 3 ;
bChangeMode = true ;
bHadTempError = false ;
tempErrorTime = unitUptime ;
returnTime(unitUptime) ;
Serial.println(", Temperature out of bounds, resettling...") ;
Serial.println() ;
}
}
evalStatus() ;
updateLEDs() ;
doSerial() ;
}
void trackTime(){
if(gpsUptime == 0 || rbUptime == 0)
unitUptime = millis() / 1000 ;
else{
if(runMode > 1)
unitUptime = (timeToLockRb / 1000) + rbUptime ;
else
unitUptime = (timeToLockGPS / 1000) + gpsUptime ;
}
}
void updateLEDs(){
if(blinkTimer + blinkSpeed <= millis()){
blinkTimer = millis() ;
bBlinkToggle = !bBlinkToggle ;
}
if(bBlinkSettling)
digitalWrite(settlingLED, bBlinkToggle) ;
else
digitalWrite(settlingLED, bSettlingLED) ;
if(bBlinkStabilized)
digitalWrite(stabilizedLED, bBlinkToggle) ;
else
digitalWrite(stabilizedLED, bStabilizedLED) ;
if(bBlinkTemp)
digitalWrite(tempLED, bBlinkToggle) ;
else
digitalWrite(tempLED, bTempLED) ;
}
void checkPPS(){
boolean readVal, didSomething ;
didSomething = false ;
readVal = digitalRead(gpsPPS) ;
if(readVal != bLastGPSPPS){
if(gpsUptime == 0)
timeToLockGPS = millis() ;
gpsUptime++ ;
bLastGPSPPS = readVal ;
didSomething = true ;
}
readVal = digitalRead(rbPPS) ;
if(readVal != bLastRbPPS){
if(rbUptime == 0)
timeToLockRb = millis() ;
rbUptime++ ;
bLastRbPPS = readVal ;
didSomething = true ;
}
if(gpsUptime > 0 && rbUptime > 0 && didSomething){
if(countDifferential == 0)
countDifferential = gpsUptime - rbUptime ;
/* if((countDifferential + rbUptime) > (gpsUptime + 2) && runMode != 255){
runMode = 255 ;
bChangeMode = true ;
returnTime(unitUptime) ;
Serial.println(", PPS DESYNC ERROR:") ;
Serial.print("GPS Uptime: ") ;
returnTime(gpsUptime) ;
Serial.println() ;
Serial.print("Rubidium Uptime: ") ;
returnTime(rbUptime) ;
Serial.println() ;
}
else */ if((countDifferential + rbUptime) < (gpsUptime - 2)){
runMode = 1 ;
bChangeMode = true ;
gpsUptime = 0 ;
countDifferential = 0 ;
gpsUnlocks++ ;
returnTime(unitUptime) ;
Serial.println(", GPS lock lost, reacquiring...") ;
Serial.println() ;
}
}
}
void checkTemps(){
lastTempPoll = millis() ;
tempSensors.requestTemperatures();
rbTemp = tempSensors.getTempC(rbTherm) ;
boardTemp = tempSensors.getTempC(boardTherm) ;
psuTemp = tempSensors.getTempC(psuTherm) ;
if(rbTemp > rbMax)
rbMax = rbTemp ;
if(rbTemp < rbMin)
rbMin = rbTemp ;
if(boardTemp > boardMax)
boardMax = boardTemp ;
if(boardTemp < boardMin)
boardMin = boardTemp ;
if(psuTemp > psuMax)
psuMax = psuTemp ;
if(psuTemp < psuMin)
psuMin = psuTemp ;
bTempLED = false ;
bBlinkTemp = false ;
if(runMode < 2){
bTempLED = true ;
return ;
}
if((rbTemp > centerTempRb + maxTempVariation) || (rbTemp < centerTempRb - maxTempVariation)){
bTempLED = true ;
bBlinkTemp = true ;
if(runMode > 2){
if(!bHadTempError){
returnTime(unitUptime) ;
Serial.print(", Rubidium temperature error: ") ;
Serial.println(rbTemp) ;
Serial.println() ;
bHadTempError = true ;
}
}
}
else if((rbTemp > centerTempRb + allowedTempVariation) || (rbTemp < centerTempRb - allowedTempVariation)){
bTempLED = true ;
bBlinkTemp = false ;
}
else{
bTempLED = false ;
bBlinkTemp = false ;
}
if((psuTemp > centerTempPSU + maxTempVariation) || (psuTemp < centerTempPSU - maxTempVariation)){
bTempLED = true ;
bBlinkTemp = true ;
if(runMode > 2){
if(!bHadTempError){
returnTime(unitUptime) ;
Serial.print(", PSU temperature error: ") ;
Serial.println(psuTemp) ;
Serial.println() ;
bHadTempError = true ;
}
}
}
else if((psuTemp > centerTempPSU + allowedTempVariation) || (psuTemp < centerTempPSU - allowedTempVariation)){
bTempLED = true ;
if(!bBlinkTemp)
bBlinkTemp = false ;
}
if((boardTemp > centerTempBoard + maxTempVariation) || (boardTemp < centerTempBoard - maxTempVariation)){
bTempLED = true ;
bBlinkTemp = true ;
if(runMode > 2){
if(!bHadTempError){
returnTime(unitUptime) ;
Serial.print(", Board temperature error: ") ;
Serial.println(boardTemp) ;
Serial.println() ;
bHadTempError = true ;
}
}
}
else if((boardTemp > centerTempBoard + allowedTempVariation) || (boardTemp < centerTempBoard - allowedTempVariation)){
bTempLED = true ;
if(!bBlinkTemp)
bBlinkTemp = false ;
}
}
void evalStatus(){
switch(runMode){
case 0: Serial.println("Init Failed") ; //Setup progresses to mode 1
Serial.println() ;
runMode = 255 ;
bChangeMode = true ;
break ;
case 1: if(bChangeMode){
returnTime(unitUptime) ;
Serial.println(", Waiting for GPS/Rb Locks...") ;
Serial.println() ;
}
bChangeMode = false ;
if(gpsUptime > 0 && rbUptime > 0){ //Waiting for locks
runMode++ ;
bChangeMode = true ;
}
bSettlingLED = true ;
bStabilizedLED = true ;
bBlinkSettling = true ;
bBlinkStabilized = true ;
break ;
case 2: if(bChangeMode){
returnTime(unitUptime) ;
Serial.println(", Locks acquired, proceeding to warm up") ;
Serial.println() ;
}
bChangeMode = false ;
if(gpsUptime > warmUpTime && rbUptime > warmUpTime){ //Waiting to warm up
runMode++ ;
bChangeMode = true ;
countDifferential = gpsUptime - rbUptime ;
}
bSettlingLED = true ;
bStabilizedLED = false ;
bBlinkSettling = true ;
bBlinkStabilized = false ;
break ;
case 3: if(bChangeMode){
returnTime(unitUptime) ;
Serial.println(", Warmed up, proceeding to settle") ;
Serial.println() ;
}
bChangeMode = false ;
if((gpsUptime > settleTime && rbUptime > settleTime && !bHadTempError) ||
(tempErrorTime + settleTime > unitUptime && bHadTempError)) { //Waiting to settle
runMode++ ;
bChangeMode = true ;
}
bSettlingLED = true ;
bStabilizedLED = true ;
bBlinkSettling = false ;
bBlinkStabilized = true ;
break ;
case 4: if(bChangeMode){
returnTime(unitUptime) ;
Serial.println(", Settled, proceeding to stabilize") ;
Serial.println() ;
}
bChangeMode = false ;
if((gpsUptime > fullStable && rbUptime > fullStable && !bHadTempError) ||
(tempErrorTime + fullStable > unitUptime && bHadTempError)){ //Waiting to stabilize
runMode++ ;
bChangeMode = true ;
bHadTempError = false ;
}
bSettlingLED = true ;
bStabilizedLED = true ;
bBlinkSettling = true ;
bBlinkStabilized = false ;
break ;
case 5: if(bChangeMode){
returnTime(unitUptime) ;
Serial.println(", Fully stabilized") ; //Normal operation
Serial.println() ;
}
bChangeMode = false ;
bSettlingLED = false ;
bStabilizedLED = true ;
bBlinkSettling = false ;
bBlinkStabilized = false ;
break ;
case 255: if(bChangeMode){
returnTime(unitUptime) ;
Serial.println(", ERROR") ; //Error
Serial.println() ;
}
bChangeMode = false ;
bSettlingLED = true ;
bStabilizedLED = true ;
bBlinkSettling = true ;
bBlinkStabilized = true ;
bTempLED = true ;
bBlinkTemp = true ;
break ;
default: returnTime(unitUptime) ;
Serial.print(", Invalid run mode: ") ;
Serial.println(runMode) ;
Serial.println() ;
bChangeMode = true ;
runMode = 255 ;
}
}
void doSerial(){
if(bChangeSerial){
if(serialMode == 1)
rbPort.listen() ;
else if(serialMode == 2)
gpsPort.listen() ;
else if(serialMode == 0) ;
else{
returnTime(unitUptime) ;
Serial.print(", Invalid serial mode: ") ;
Serial.println(serialMode) ;
Serial.println() ;
serialMode = 0 ;
}
bChangeSerial = false ;
}
Serial.flush() ;
switch(serialMode){
case 0: receiveCommand() ;
break ;
case 1: if(rbPort.available())
Serial.write(rbPort.read()) ;
else
receiveCommand() ;
break ;
case 2: if(gpsPort.available())
Serial.write(gpsPort.read()) ;
else
receiveCommand() ;
break ;
default: returnTime(unitUptime) ;
Serial.println(", invalid serial mode.") ;
Serial.println() ;
break ;
}
}
/* Command format:
* <*CMMD*>
*
* Commands:
* RTMP - return temperatures
* RTST - return temperature statistics
* RTUT - return uptimes
* RSER - return serial mode
* RFUL - return full statistics
*
* SSER - Switch serial mode
* RSTP - reset temperature statistics
* RLCK - restart locking and settling procedure
*/
void receiveCommand(){
char command[commandBuffer] ;
byte counter ;
boolean bForMonitor = false ;
if(!Serial.available())
return ;
for(counter = 0; counter < commandBuffer; counter++)
command[counter] = ' ' ;
if(!Serial.readBytesUntil('\n', command, commandBuffer))
return ;
while(Serial.available())
Serial.read() ;
for(counter = 0; counter < commandBuffer - 1; counter++){
if(command[counter] == '<' && command[counter + 1] == '*')
bForMonitor = true ;
}
if(bForMonitor){
for(counter = 0; counter < commandBuffer - 8; counter++){
if(command[counter] == '<' && command[counter + 1] == '*' && command[counter + 6] == '*' && command[counter + 7] == '>'){
switch(command[counter + 2]){
case 'R': switch(command[counter + 3]){
case 'T': switch(command[counter + 4]){
case 'M': if(command[counter + 5] == 'P'){ //Return temperatures
returnTime(unitUptime) ;
Serial.print(", Temperatures - Board temp: ") ;
Serial.print(boardTemp) ;
Serial.print("C, PSU temp: ") ;
Serial.print(psuTemp) ;
Serial.print("C, Rubidium module temp: ") ;
Serial.print(rbTemp) ;
Serial.println("C") ;
Serial.println() ;
}
else{
invalidCommand(command) ;
return ;
}
break ;
case 'S': if(command[counter + 5] == 'T'){ //Return temperature statistics
returnTime(unitUptime) ;
Serial.print(", Temperature stats - board max: ") ;
Serial.print(boardMax) ;
Serial.print("C, board min: ") ;
Serial.print(boardMin) ;
Serial.println("C") ;
Serial.print("PSU max: ") ;
Serial.print(psuMax) ;
Serial.print("C, PSU min: ") ;
Serial.print(psuMin) ;
Serial.println("C") ;
Serial.print("Rubidium module max: ") ;
Serial.print(rbMax) ;
Serial.print("C, Rb module min: ") ;
Serial.print(rbMin) ;
Serial.println("C") ;
Serial.println() ;
}
else{
invalidCommand(command) ;
return ;
}
break ;
case 'U': if(command[counter + 5] == 'T'){ //Return uptimes
Serial.print("Uptimes - Unit: ") ;
returnTime(unitUptime) ;
Serial.println() ;
Serial.print("GPS: ") ;
returnTime(gpsUptime) ;
Serial.println() ;
Serial.print("Rubidium: ") ;
returnTime(rbUptime) ;
Serial.println() ;
Serial.print("GPS to Rb count difference: ") ;
Serial.println(countDifferential) ;
Serial.print("GPS unlock count: ") ;
Serial.println(gpsUnlocks) ;
Serial.println() ;
}
else{
invalidCommand(command) ;
return ;
}
break ;
default: invalidCommand(command) ;
return ;
}
break ;
case 'S': switch(command[counter + 4]){
case 'E': if(command[counter + 5] == 'R'){ //Return serial mode
returnTime(unitUptime) ;
Serial.print(", serial connected to ") ;
if(serialMode == 0)
Serial.println("monitor") ;
else if(serialMode == 1)
Serial.println("rubidium module") ;
else if(serialMode == 2)
Serial.println("GPS") ;
Serial.println() ;
}
else{
invalidCommand(command) ;
return ;
}
break ;
case 'T': if(command[counter + 5] == 'P'){ //Reset temperature statistics
rbMin = 100 ;
rbMax = -100 ;
boardMin = 100 ;
boardMax = -100 ;
psuMin = 100 ;
psuMax = -100 ;
bTempLED = false ;
bHadTempError = false ;
returnTime(unitUptime) ;
Serial.println(", temp stats reset") ;
Serial.println() ;
}
else{
invalidCommand(command) ;
return ;
}
break ;
default: invalidCommand(command) ;
return ;
}
break ;
case 'L': if(command[counter + 4] == 'C' && command[counter + 5] == 'K'){ //Restart locking and settling
runMode = 1 ;
bChangeMode = true ;
gpsUptime = 0 ;
rbUptime = 0 ;
bHadTempError = false ;
gpsUnlocks = 0 ;
returnTime(unitUptime) ;
Serial.println(", relocking and resettling...") ;
Serial.println() ;
return ;
}
else{
invalidCommand(command) ;
return ;
}
break ;
case 'F': if(command[counter + 4] == 'U' && command[counter + 5] == 'L'){ //Return full info
Serial.print("Full report - Operating mode: ") ;
Serial.print(runMode) ;
Serial.print(" - ") ;
switch(runMode){
case 1: Serial.println("Waiting for GPS/Rb Locks") ;
break ;
case 2: Serial.println("Warming up") ;
break ;
case 3: Serial.println("Settling") ;
break ;
case 4: Serial.println("Stabilizing") ;
break ;
case 5: Serial.println("Normal operation") ;
break ;
default: Serial.println("Error") ;
break ;
}
Serial.print("Unit uptime: ") ;
returnTime(unitUptime) ;
Serial.println() ;
Serial.print("GPS uptime: ") ;
returnTime(gpsUptime) ;
Serial.println() ;
Serial.print("Rubidium uptime: ") ;
returnTime(rbUptime) ;
Serial.println() ;
Serial.print("GPS to Rb count difference: ") ;
Serial.println(countDifferential) ;
Serial.print("GPS unlock count: ") ;
Serial.println(gpsUnlocks) ;
Serial.print("Board temp: ") ;
Serial.print(boardTemp) ;
Serial.print("C, PSU temp: ") ;
Serial.print(psuTemp) ;
Serial.print("C, Rubidium temp: ") ;
Serial.print(rbTemp) ;
Serial.println("C") ;
Serial.print("Board max temp: ") ;
Serial.print(boardMax) ;
Serial.print("C, board min: ") ;
Serial.print(boardMin) ;
Serial.println("C") ;
Serial.print("PSU max: ") ;
Serial.print(psuMax) ;
Serial.print("C, PSU min: ") ;
Serial.print(psuMin) ;
Serial.println("C") ;
Serial.print("Rubidium module max: ") ;
Serial.print(rbMax) ;
Serial.print("C, Rb module min: ") ;
Serial.print(rbMin) ;
Serial.println("C") ;
Serial.print("Serial connected to ") ;
if(serialMode == 0)
Serial.println("monitor") ;
else if(serialMode == 1)
Serial.println("rubidium module") ;
else if(serialMode == 2)
Serial.println("GPS") ;
Serial.println() ;
}
else{
invalidCommand(command) ;
return ;
}
break ;
default: invalidCommand(command) ;
return ;
}
break ;
case 'S': switch(command[counter + 3]){
case 'S': if(command[counter + 4] == 'E' && command[counter + 5] == 'R'){ //Switch serial mode
serialMode++ ;
bChangeSerial = true ;
if(serialMode > 2)
serialMode = 0 ;
returnTime(unitUptime) ;
Serial.print(", serial switched to ") ;
if(serialMode == 0)
Serial.println("monitor") ;
else if(serialMode == 1)
Serial.println("rubidium module") ;
else if(serialMode == 2)
Serial.println("GPS") ;
Serial.println() ;
return ;
}
else{
invalidCommand(command) ;
return ;
}
break ;
default: invalidCommand(command) ;
return ;
}
break ;
default: invalidCommand(command) ;
return ;
}
}
}
}
else{
if(serialMode == 1){
for(counter = 0; counter < commandBuffer; counter++){
if(!isAscii(command[counter]))
command[counter] = ' ' ;
}
rbPort.print(command) ;
rbPort.flush() ;
}
else if(serialMode == 2){
gpsPort.print(command) ;
gpsPort.flush() ;
}
}
}
void invalidCommand(char* command){
returnTime(unitUptime) ;
Serial.print(", invalid command: ") ;
Serial.println(command) ;
Serial.println() ;
}
void returnTime(long toReturn){
long days = toReturn / 86400 ;
long hours = (toReturn - (days * 86400)) / 3600 ;
long minutes = (toReturn - (days * 86400) - (hours * 3600)) / 60 ;
Serial.print(days) ;
Serial.print("d ") ;
Serial.print(hours) ;
Serial.print("h ") ;
Serial.print(minutes) ;
Serial.print("m ") ;
Serial.print(toReturn % 60) ;
Serial.print("s") ;
}