Introduction - If you have any usage issues, please Google them yourself
: An introduction to Atmel' s single-chip ATmega324P for the control of the core, combined with digital temperature sensor DS18B20 and INTEGRAT10N' s wireless transceiver chip IA4421 digital wireless temperature sensor design. The design frequency band (433 MHz ISM) not required to apply to the use of temperature measurement range of 1 4o ~ 95 ℃, a resolution of 0.062 5 ℃, operating frequency 433 MHz, receiver sensitivity of 109 dBm, the maximum transmitting power 8 dBm, transmission distance of 200 m, mining and battery-powered. Focuses on the system hardware interface, software design, and low-power design. The digital temperature sensor can be applied to a variety of non-contact required field