can anything be done in order to improve the range and reliability of the 433-part of the heart? Im getting very unreliable results from my Telldus temp+humid sensors.
(Im using the heart to automate my laundry room. I want it to control two dehumidifyers based off of the humidity of the room. but its rather hard when i get temp+humidity readings once or twice per 6 hrs)
So, can we open the device and solder on additional antenna or something?