That will be 5, 6, 7, 8.redhawk wrote:As a work around for the slight variations in the remote control IDs perhaps you could define a subsection of --brand=5 like --brand=5a for "0011" start sequence and --brand=5b for "0010" start sequence??
As it happens I knocked up a quick and dirty program to take a WAV file and to turn the data into binary sequences.redhawk wrote:I think people who are going to work out their remote IDs by trial and error are in for a long wait:
greatdane wrote:What kind of range do you get with this ? With a 16cm piece of wire hanging off pin 7 (GPIO4) I get no more than ~10cm with the Status units from Asda.
greatdane wrote:Thanks for your quick reply.
I definitely have the correct pin, but I just doubled the length of my wire and that did the trick. It now works over several meters. Will experiment with the optimal length later in the week.
Some people have reported using a longer wire to boost range, not sure why this should work since a 1/4 wave dipole length of 433MHz is around 16cm perhaps having harmonics can mess up equations.Alternatively, is there anything else that would do the job?
I googled the part number (looking for UK sites) and found several I'd heard of including Digikey and Mouser. All of them seemed to have a shipping charge of over £12, or a minimum order of something like £50.Goods Subtotal: £0.94
Basic Shipping: Unknown
Direct Ship Charge: £15.95
greatdane wrote:While looking into the pricing of the filters I came across a complete 433.92Mhz TX/RX set on eBay for just 99p + 50p delivery !
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 1046773860
Much cheaper than a filter for the Pihat and already the correct frequency. I assume it will be easier to get better range with these so ordered 3. Will update when I have had time to play with them.
redhawk wrote:You can buy the same filters from eBay for about 6 quid I'm sure there're no different than the ones sold by Farnell.
As for 144.64MHz the correct length is around 19.4cm according to - http://wb5mrn.com/ham/antenna.htm
I would have expected having an antenna wire length set for 433.92MHz to work better than a different frequency even though it was the 3rd harmonic but that doesn't appear to be the case.