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Hello people,
I need to convert a sinusoidal signal (0 to 8v range) to square signal (5v TTL), using half voltaje (50%) as "change point" (if >= 4v then: 5v TTL logic high; else: 5v TTL logic low)
To me this is chinese as I am a software guy, but i suspect a LM chip and some black magic may do...
FPGA's are merely logic multithreading realtime processing chips. For example, a microcontroller features certain set of peripherals like UART, SPI, PWM, Timers, and so on, and they are limited to it. Unless microcontrollers, FPGA don't feature built-in peripherals, instead, peripherals can be...
Responding to the first post (and not messing in the branches...)
Yes it is possible to use a USB Bluetooth dongle with a microcontroller. How?
Simple, just open the dongle case, find the Bluetooth chip's datasheet, find TX/RX pins & stuff, jump them out from the USB stage, and your done...
qei encoder
PIC18F4431 family MCU's feature a MFM (Motion FeedBack Module) to monitor velocity and position activity for motors (or anything connected to it). This QEI peripheral supports 2 or 3 channels encoders, A, B & Index. If you need to monitor (to control) 2 axes, you may use two of...
TO DETECT DIRECTION (in pseudo code):
variables:
chA.......... pic pin input from encoder channel A (1=high 0=low)
chB.......... pic pin input from encoder channel B (1=high 0=low)
old_chA... value of chA from previous pulse
cw........... rotation direction (1=cw...
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