hi, im in finding a small camera module as a cellphone one does anyone know where to find one. i need to attach a flash memory card or some.
best
killabyte
hi, im driving some stepper motors using the l297 and l298. and i want to know if allowable to accelerate the motor using a ramp dc increase in the v ref pin in the l297.
this pin regulates the current delivered to motor windings through internal chopper circuit.
instead acelerating the motor...
hi guys, recently ive been dealing with l298 stepper driver and using a l297 to control it through a 8 bits MCU in order to develop a small movement control system. the motor consumption is 1,2 A. power supply is 12vdc
i found two problems when testing:
1. when inserted an amperimeter...
hi, i need to achieve fast bidirectional communication between two data level devices, the 1. is an open collector I/O device powered from a battery and unregulated. the batt swing between 6,4 and 5,0 VDC.
the 2. is a bidirectional port in a MCU unit. the maximum allowed input for this device...
hi, im looking for a low pressure propane gas electronic valve or regulator or such a way to control the gas flow delivered to a small (20 of them) gas heater
the heater is fed by a small propane gas cylinder. im not sure about psi but one of those cylinders weights between 40 and 100 lb.
the...
i need to input signal to a cmos device, but it is shielded and fed from 12vdc and have an internal regulator to 2.9vdc.
i have a 12vdc supply and a 5v regulator.
how to convert the 5vdc signal from mcu to input the device.
its input is very sensitive to overcharge so 3.3vdc would destroy it...
hi, i need to find an electric or electronic gas valve for low pressure applications, i need to control by means of a computer, humidity, TEMPERATURE and other parameters
the gas comes from one of those gas cilynders.
regards
killabyte
hi, id like to know how to stall an AC motor, if possible to do in one phase AC motor and how to do in three phase ones.
im developing an electronic control for a motor and i like to know if possible to do that.
regards
killa
hi, i want to use three projectors (video beam) and three screens are joined to to make one (1) image; the output is a dvd signal from a typical dvd device, what kind of equipment should i use in order to separate the signal to those video beams?
regards
killa
hi, does anyone have worked with power generators for audio applications? i need to know how much to derate a generator when working above 2600m altitude and some tips about generators when in audio applications
regards
killa
hi, does anyone have worked with power generators for audio applications? i need to know how much to derate a generator when working above 2600m altitude and some tips about generators when in audio applications
regards
killa
last year i found a solid state protective device, it was a whole small block consisting in ac input and protected ac output. it seemed like a big solid state relay but it happened another things inside.
protection of ac supply, but now i dont know where to find it. actually im makin a...
does anyone knows about ac regulation and protection for an application of about 30KW one phase?
id like to know methods or how to develop a protection.
regards
killa
developing a small dc regulator im trying to get 110 ac and then get 5vdc, @ 1A what do you think about rectify directly from 110vac, then using a SCR and a microcontroller to perform phase control, then a LC filter and at last a lm 5vdc regulator, i think it seems easy to develop and a small...
hi guys, im developing a power distribution rack, its just 50 A @ 120VAC maybe more than one phase, but i need to use a surge protector, somewhere i found an industrial protection device, something like a solid state device, but i lost the path and i dont know what to use.
thanks if anyone...
i work in proffesional audio. i was working with some auto amplified speakers, that means that the amplifier is inside the speaker instead using an additional one to power them.
two guys from electrical company, came to check something and i turned down the main gain in the console, so no...
i want to make a filter to clean my ac line, but wich harmonics are the principal to deal with? i work in audio environment and usually i have to connect very low loads (very impositive) between 38 and 110 Hz in the mains and beats of 0.7 - 0.8 millisecond, high power peaks.
i dont know, first...
i need to display some data received from a serial comm using guide, but i dont know what kind of box to use, an edit box doesnt allow to diplay multiple lines, so, how can i do that?
im having some trouble closing com1 when i use fread and fwrite, the port doesnt close properly and i have to...
