Trying to use sleep mode for a simple led for night medical need. Push button, led lights bright for 30 seconds, then ramps down to zero over span of 5 seconds. Have read example on github - section of it in 2nd attachment.
My code is in first attachment. At this point I'm getting " 'enterSleep' was not declared in this scope". Can't get beyond this and am not sure I have the command sequence right.
// Enters the arduino into sleep mode.void enterSleep(void){ // There are five different sleep modes in order of power saving: // SLEEP_MODE_IDLE - the lowest power saving mode // SLEEP_MODE_ADC // SLEEP_MODE_PWR_SAVE // SLEEP_MODE_STANDBY // SLEEP_MODE_PWR_DOWN - the highest power saving mode set_sleep_mode(SLEEP_MODE_PWR_DOWN); sleep_enable();
// Now enter sleep mode. sleep_mode();
// The program will continue from here after the WDT timeout
// First thing to do is disable sleep. sleep_disable();
// Re-enable the peripherals. power_all_enable();}
In the bottom code the code statements are buried in comments. The bottom code needs to be inserted into the top code.
Maybe it should be like this:
// Enters the arduino into sleep mode.
void enterSleep(void)
{
// There are five different sleep modes in order of power saving:
// SLEEP_MODE_IDLE - the lowest power saving mode
// SLEEP_MODE_ADC
// SLEEP_MODE_PWR_SAVE
// SLEEP_MODE_STANDBY
// SLEEP_MODE_PWR_DOWN - the highest power saving mode
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_enable();
sleep_mode(); // Now enter sleep mode.
sleep_disable(); // The program will continue from here after the WDT timeout
// First thing to do is disable sleep.
power_all_enable(); // Re-enable the peripherals.
}
Danois90 - thanks, your help fixed the problem I had. Unfortunately another problem arose. After pushing the button and going through a light cycle and then to sleep, pushing the button again starts the light cycle for about 4 seconds and then does a reset, subsequent attempts give same 4 second result. I suspect I'm not resetting something when it comes out of sleep but I don't know what it is. I pushed the Arduino reset button and it then works just like it should, and then subsequent attempts give same 4 second result. Posting here a current copy of the code with your suggestion in it.
Hey everyone I am very new to Arduino and programming all together. I've only been working at this for about 2 weeks and trying to use forums, YouTube, and google when possible, but this one I just can't figure out this part on my own.
I am trying to make a biometric fingerprint lock for an in wall safe. I have been able to get most of my code working, recognizing my print and activating the lock. Since I plan on running this project on batteries I would like to be able to put the Arduino to sleep until I place my finger on the fingerprint reader. Once the lock has been unlocked I would like it to go back into a sleep mode after like 30 secs. I have tried using some example codes that I have seen online, but I can't figure out how to get them to work with my Sketch.
I am using an Arduino Uno Rev3, a 4 relay shield, R503 fingerprint reader, and a 12v solenoid lock. I included 2 pictures of what my setup looks like, and I will include the code that I am currently working with. I was wondering if anyone would be able to help me. Any help with this would be appreciated. Thank you.
#include <Adafruit_Fingerprint.h>
#define relay1 4
#define relay2 7
#define relay3 8
#define relay4 12
#if (defined(__AVR__) || defined(ESP8266)) && !defined(__AVR_ATmega2560__)
// For UNO and others without hardware serial, we must use software serial...
// pin #2 is IN from sensor (GREEN wire)
// pin #3 is OUT from arduino (WHITE wire)
// Set up the serial port to use softwareserial..
SoftwareSerial mySerial(2, 3);
#else
#define mySerial Serial1
#endif
Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);
void setup()
{
pinMode(relay1, OUTPUT);// connected to Relay 1
digitalWrite(relay1, LOW);
pinMode(relay2, OUTPUT);// connected to Relay 2
digitalWrite(relay2, LOW);
pinMode(relay3, OUTPUT);// connected to Relay 3
digitalWrite(relay3, LOW);
pinMode(relay4, OUTPUT);// connected to Relay 4
digitalWrite(relay4, LOW);
Serial.begin(9600);
// set the data rate for the sensor serial port
finger.begin(57600);
Serial.println("\n\nAdafruit finger detect test");
delay(5);
if (finger.verifyPassword()) {
Serial.println("Found fingerprint sensor!");
} else {
Serial.println("Did not find fingerprint sensor :(");
while (1) { delay(1); }
}
Serial.println(F("Reading sensor parameters"));
finger.getParameters();
Serial.print(F("Status: 0x")); Serial.println(finger.status_reg, HEX);
Serial.print(F("Sys ID: 0x")); Serial.println(finger.system_id, HEX);
Serial.print(F("Capacity: ")); Serial.println(finger.capacity);
Serial.print(F("Security level: ")); Serial.println(finger.security_level);
Serial.print(F("Device address: ")); Serial.println(finger.device_addr, HEX);
Serial.print(F("Packet len: ")); Serial.println(finger.packet_len);
Serial.print(F("Baud rate: ")); Serial.println(finger.baud_rate);
finger.getTemplateCount();
if (finger.templateCount == 0) {
Serial.print("Sensor doesn't contain any fingerprint data. Please run the 'enroll' example.");
}
else {
Serial.println("Waiting for valid finger...");
Serial.print("Sensor contains "); Serial.print(finger.templateCount); Serial.println(" templates");
}
}
void loop() // run over and over again
{
getFingerprintID();
delay(50); //don't ned to run this at full speed.
}
uint8_t getFingerprintID() {
uint8_t p = finger.getImage();
switch (p) {
case FINGERPRINT_OK:
Serial.println("Image taken");
break;
case FINGERPRINT_NOFINGER:
Serial.println("No finger detected");
return p;
case FINGERPRINT_PACKETRECIEVEERR:
Serial.println("Communication error");
return p;
case FINGERPRINT_IMAGEFAIL:
Serial.println("Imaging error");
return p;
default:
Serial.println("Unknown error");
return p;
}
// OK success!
p = finger.image2Tz();
switch (p) {
case FINGERPRINT_OK:
Serial.println("Image converted");
break;
case FINGERPRINT_IMAGEMESS:
Serial.println("Image too messy");
return p;
case FINGERPRINT_PACKETRECIEVEERR:
Serial.println("Communication error");
return p;
case FINGERPRINT_FEATUREFAIL:
Serial.println("Could not find fingerprint features");
return p;
case FINGERPRINT_INVALIDIMAGE:
Serial.println("Could not find fingerprint features");
return p;
default:
Serial.println("Unknown error");
return p;
}
// OK converted!
p = finger.fingerSearch();
if (p == FINGERPRINT_OK) {
Serial.println("Found a print match!");
} else if (p == FINGERPRINT_PACKETRECIEVEERR) {
Serial.println("Communication error");
return p;
} else if (p == FINGERPRINT_NOTFOUND) {
Serial.println("Did not find a match");
return p;
} else {
Serial.println("Unknown error");
return p;
}
// found a match!
Serial.print("Found ID #"); Serial.print(finger.fingerID);
Serial.print(" with confidence of "); Serial.println(finger.confidence);
digitalWrite(relay1, HIGH);// "unlocks" relay 1
Serial.println("relay 1 unlocked");
delay(5000); //keeps relay "unlocked for 5 seconds"
digitalWrite(relay1, LOW);// "locks relay 1
Serial.println("relay1 locked");
return finger.fingerID;
}
// returns -1 if failed, otherwise returns ID #
int getFingerprintIDez() {
uint8_t p = finger.getImage();
if (p != FINGERPRINT_OK) return -1;
p = finger.image2Tz();
if (p != FINGERPRINT_OK) return -1;
p = finger.fingerFastSearch();
if (p != FINGERPRINT_OK) return -1;
// found a match!
return finger.fingerID;
}
I have an fingerprint sensor FPC1020; I was testing it but it broke down it.
Now I can programming it with ESP32 but it doesnt work very well; I send data frame but I don´t know hat is wrong.
I watched the library of Arduino and I tested it with this, I was able to record fingerprints ans erase them but later it didn´twork anymore.
According to the Arduino library the frame is sent as follows:
according to the arduino library the frame is sent as follows:
start frame, command, data, data, data, data, checksum, end frame
I don´t know what is the data to complete because in the library of Arduino the ID for new usser is necesary but the ID it never is read; I sent some commands but the sensor is not working.
I show one of frame to add new user.
0XF5, 0X01, OXFF, 0X01, 0X00, 0X00, 0XDB, 0XF5
I sent some commnads to find fingerprint but it doesn´t respond to request.
