Forum Discussion
Altera_Forum
Honored Contributor
11 years agoHello gj_leeson.
First thank you for your answer. After having looked at the different sensors from AD, I think that the TMP03/04 would be best suited for the job. Indeed, the idea is to build a basic thermometer which generates an alert when the temperature is too high in a greenhouse. So I just need a basic sensor. And I only have 160 LE in the chips so it seems to be hard to manage 1 or 2 wire communication busses (common case in other temperature sensors apparently). Since it would be also helpful to be able to put the sensor into water (there is an aquaponic system in the GHouse) Do you think it would be ok to waterproof it? Moreover, I'm not sure to understand the difference between TMP03 and TMP04. In the datasheet it says: "The digital output of the TMP04 is CMOS/TTL compatible, and is easily interfaced to the serial inputs of most popular microprocessors. The open-collector output of the TMP03 is capable of sinking 5 mA. The TMP03 is best suited for systems requiring isolated circuits utilizing optocouplers or isolation transformers." I don't know which one I should go for. Could you give me a hint about that? Best, Boris