Putting together a DIY pgmr shouldn't be too hard. There is enough
technical doc in the spec sheet to do it. (PWM for data bits (<150us=0,
>150=1) after you take VCC to 12V.
Take Vcc to 18V to make the setting permanent (plus set the 'write' bit).

The sensors are NOT usable until programmed since the default pgmg load
is all FF (or 00, I can't recall exactly). I have a several for experimentation,
but can't seem to get a response out of the factory confirming the programming
info I deduced from the spec sheet. What I do like is their ability
for their response to be 'normalized' so that variability in magnets
is compensated at the completed sensor, instead of within the program code.

Robert

Edson Brusque wrote:
>
> Hello,
>
>      I'm looking for a linear output hall effect sensor.
>
>      The Melexis MLX90215 seens to be ideal for my application but I
> don't want to expend US$750 on the programmer.
>
>      Someone knows a non-programmable linear hall sensor? Low cost?
>
>      What about doing my own MLX90215 programmer?
>
>      Thank you very much,
>
>      Brusque

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