125khz Writable RFID T5557 / T5567 / T5577 Rewritable Proximity Card for ID Writer Copier Duplicate (Thin Card) W1209 Digital Temperature Controller Thermostat Module Emergency communication devices and panic

Emergency communication devices and panic buttons that establish voice calls or SMS alerts through cellular networks independent of internet availability

Waveshare provides calibration matrices specific to this lens in their documentation

SS) I2C Pins Yes (SDA

and fitness trackers

125khz Writable RFID T5557 / T5567 / T5577 Rewritable Proximity Card for ID Writer Copier Duplicate (Thin Card) W1209 Digital Temperature Controller Thermostat Module Emergency communication devices and panic125khz Writable RFID T5557 T5567 T5577 Rewritable Proximity Card for ID Writer Copier Duplicate (Thin Card) 125khz Writable RFID T5557 T5567 T5577 Rewritable Proximity Card for ID Writer Copier Duplicate (Thin Card) This is RFID 13. 56MHz Card used for Contactless transmission of data and supplies energy with no battery needed. Its Operating distance is Up to 1 Meter depending on antenna geometry. Operating frequency is 13. 56MHz and Data transfer