WWVB NIST Radio Time Receiver Kit (1.1V to 3.3V)
Always have accurate UTC time for your projects and Atomic Clocks. Use this receiver module to receive the 60kHz radio time in the United States. Ferrite antenna included.
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Always have accurate UTC time for your projects and Atomic Clocks. Use this receiver module to receive the 60kHz radio time in the United States. Ferrite antenna included.
Features:
Reference: http://www.nist.gov/pml/div688/grp40/wwvb.cfm
Sample Arduino Code:
// WWVB coverage:
// http://tf.nist.gov/stations/wwvbcoverage.htm
/*
Pinout
Supply voltage range is 1.1V-3.3V
Normal operation has PON connected to ground.
In standby mode, PON is connected to Vdd
TCON is the input to WWVB_PIN - no pullup required
VCC - Supply voltage +3.3V
GND - Ground
TCON - Time pulse to Arduino pin 2 (no pullup)
PON - HIGH: RCVR OFF, LOW: RCVR ON. Do not leave floating
Normally just connect this to ground so the receiver is always on.
If this pin is switched from HIGH to LOW it resets the
receiver.
There are consecutive position markers at the 59th and 0th
seconds which allow synchronisation.
The change in the pulse starts exactly on the second
(unlike WWV which also has a "tick" in all but two seconds).
A position marker is 0.8s of low power
A one is 0.5s of low power
A zero is 0.2s of low power
*/
// TCON is connected to this pin. TCON is the inverted output signal.
#define WWVB_PIN 2
// Flashes in sync with receiver pin
#define LED_PIN LED_BUILTIN
void setup(void)
{
Serial.begin(9600);
while(!Serial);
pinMode(LED_PIN, OUTPUT);
// Don't set the internal pullup
pinMode(WWVB_PIN, INPUT);
Serial.println("Start");
}
void loop(void)
{
if(digitalRead(WWVB_PIN)) {
digitalWrite(LED_PIN,HIGH);
} else {
digitalWrite(LED_PIN,LOW);
}
}
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