Is the firmware for SRF04 - Devantech Ultrasonic Ranger available ?
I have seen the schematic on the Devantech site, but unable to locate the firmware to make it work !
Can the firmware from the PIC on the SRF04 - Devantech Ultrasonic Ranger be read out ? Or is it code protected ?
Has someone tried making a clone of the Devantech SRF04 Ultrasonic Ranger or something similar ?
This looks like a fun project to do... but timing issues seems to be extremely critical...
If no one has made a clone before, is any one interested ?
I think that the old things is not good...
Taiwan's prowave offers SRM400 - Car Reversing Aids (0.25 - 1.5 meters)
h**p://www.prowave.com.tw/english/products/sr/srm400.htm
This is smaller and cheaper than SRF04 ...
(1000 modules -> about 10$/EA)
but small quantity price is not good...
Take a look around for good price....
Good price . Just keep in mind that sensor used in this module designed for car parking aid . It is visible from beam pattern.
BTW, what is the price of prowave sensors and MOQ? I send them mail and no response received . We dont have local distributor. In comparision murata's sensors costs about 8 usd (same type of sensors). Others (protected enclosure) do cost more .