Arduino library for receiving temperature sent by commercial temperature sensor T25 and compatible ones with inside bord TX1-3
Data world
R - random sensor ID 8b 0-255
B - batery state 2b
C - channel number 2b 0-2 = 1-3
T - temperature 12b -2048-2047
E - end / extension 12b
0 ------------------------------------- 35
XX S RRRRRRRR BB CC TTTT TTTTTTTT EEEEEEEE EEEE XX S 11101001 10 00 0000 11100111 11110000 0000 P1 11101001 1000 0000 11100111 11110000 0000 P2 ... P12
LOW LONG - space
S = 9000us start
1 = 2000us 1 bit
0 = 1000us 0 bit
P = 4000us pause
X = 500us initial
HIGH IMPULSE
I = 500us
bit 0 -> 35
500 500 9000 1000 2000 4000 |I|X|I|------- S --------|I|-0|I|-1--|I I|---P----|I
| | | | | | | | | | | | | | | || |_| || || |......| || |
Library SensorT25.h
Library reading data from sensors T25 by channel 1,2 and 3. T25 don't have button for change channel, but inside are contacts next of button for change C/F. Data for sensors are stored in array and ispossible read it by get functions with channel number as parameter..
Enjoy, Martin Mikala dev@miklik.cz