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Topic: FS1000A / XY-MK-5V 433Mhz TX/RX Module (Read 34 times) previous topic - next topic


I have got a number of this units and are strugling a bit.
Using one ANano and one AUno and the FS1000A.
I can only get them to transfeer bytes within 20cm.
Tested with VCC 10V and 5V, tested with home made coiled antenna and long wire antenna about 30cm. I have tested 2 different TX modules, tried moving away from the domestic WIFI systems to try to avoid them disturbing. Testing tuning the RX drossel without getting any longer distance.
I was hoping I could use them for a bit longer distance than 20cm.
Using standard lib and close to standard examples with wirtual wire.

Do any body have a clue?''
using 2000bs as the standard example.



This may help.
The voltage specs for these Transmitters and Receivers are a bit confusing.
The Transmitter will work with any voltage between 3V and 12V , but the Receiver needs 5V, and it needs to be
very close to 5V, otherwise the receiver wont decode properly, and this can show up as poor sensitivity / poor range.
Running the receiver off anything much above 5 V will damage it.


I have checked, and it is indeed lower, I will test more to morrow.


I just bought 3 pairs of these on Ebay. I have an Uno and an Uno Rev3 and I got it working with VirtualWire in 0023

Tried 1.0.3 but got compile errors, so switched to 0023 and the examples transmitter and receiver work just fine with these.


Dec 19, 2012, 09:03 pm Last Edit: Dec 22, 2012, 08:40 am by gvorster Reason: 1
The distance these thing can operate is dissapointing. Can't hardly receive anything at more than 25cm apart
work for transmitter/receiver work without change on these devices.

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