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Depends on the touch panel type, may have discrete "buttons" or continuous (x-y) position sensing, newer types are "multi-touch" sensing two or three touches simultaneously. In any case, a microcontroller or dedicated touch controller should be able to translate the touch input to the intended button actions.
I would like to use a potentiometer attached to a ball valve and e.g. (10) 2.5mm x 7.4mm rectangular LEDs to indicate the position of the valve: no LEDs lit = fully close, and 10 lit = fully open. This seems pretty simple and I can almost imagine this circuit, but wonder if someone out there could save me some trial and error. Thx!
Hello, This is a project for controlling sensored brushless dc motor (BLDC Motor) using Microchip PIC16F877A. This motor is a 3 phase motor, it has three hall sensors to detect its position in order to generate the appropriate signal to the three phase bridge as shown on the attached circuit schematic. The following video shows the working: [
adding to post #2 that do use the cursor positioning command and overwrite the wrong entered character with blank space if you want to delete the character with delete button.
which microcontroller are u using? The selectable 12 position switch will have perticular voltage output for each selection. This voltage can be given to ADC and corresponding msg can be read from ROM and sent to LCD_print function. is LCD alphanumeric or graphic? If its alphanumeric there are plenty of example codes online. Can u share the schemat
For my project, stepper motor will be used to rotate thermostat knob. My problem is i want stepper motor to rotate to the shut off position of knob. When the knob is not moving(obviously it has some shutdown point), stepper motor should stop rotating. Is there any mechanism for microcontroller to know that stepper motor is not moving anymore an
I presume you understand about the function LDR half bridge in each axis. We can expect that both LDRs have same resistance in balanced state (correct tracking position) and also with diffuse lighting (no sun at the sky). In balanced statem both relays are off and the motor stops. In unbalanced state, the comparators are either activating one or
hi i have a project to track objects and send their position data through. I also read this topic : there were a useful module there SIM548 GSM/GPRS+GPS Module that have both GSM and GPS integrated, but i wanted to ask again that is there any microcontroller with integrated GSM or GPS modul
Hi all, I am currently designing a Telemetry system for my Model Aircraft. So i need a board with GPS,GPRS and a microcontroller Possibly an ARM(LPC2148 or similar) And that board should also have RS232, USB Host and GPIO for analog input to monitor fuel level, temparature air pressure at current position. I may consider a digital Barometric
Hello everyone, I am doing a project on gps and gsm based vehicle tracking system, where the location of the vehicle is got by gps and the position will be sent to the mobile through gsm. So which microcontroller is best to use for this project? plz help me out.....
Hello anyone, I am trying to to connect a 74hc165 parallel to serial shift register, to a 74hc595 serial to parallel shift register. i would like to use a 555 timer for the clock. i am trying to send the position of switches or push buttons at least 7 minimum, through a least amount of wires. if anyone has any other ideas how to do this i need h
Hello! You can build a linear servo (without hysteresis), but the problem will be to detect the current heading. If you want to built a system with a compass, it's simple, and you can lock to a certain heading. If you add a GPS and if you have geographical data of the river, then you can know at any time your heading and your position. But from th
Thumbwheel switches can be obtained in hexadecimal (16 position, they read A to F after 9) with a 4-bit binary output. You could use just one of these for your purpose. (assuming you only need channels 1 to 15 on your chart).
I need huge help. I connected my RN-XV module to board (see attachment). 4 pins from RN-XV (5V,GND,TXT,RXT) I connected to IC106(see on scheme), 5V-slot 8, GND- slot 5, TX- 1, RX- 4. Jumper J102 I switched to left position so I could use RX. When it is connected like this I cant use my serial port so
I think you forgot to read the button position in the main loop. void main(){ int l; while(1){ read_button(); // read the button to know if is pressed or not if (button==0) // if switch pressed execute this part{ ... }else{ //if not pressed execute this part ... } }
You can drive direct servos in both examples like @jpanhalt say.... Only you need pulse on control line.... Pulse define position of servo!
I have implemented PID control on precision dc motors. The position of servo motor is determined through linear optical encoders. The encoder values are read using a counter/timer/ TIM4 in the microcontroller. When I make very small moves, the servo moves and stops. Then according to my algorithm , I check if the movement has finished or not. In so
what kind of positioning hardware do you have, or are you planning to build all the mechanical structure? I think you basically need 3 stepper motors and 3 H-bridge controllers, and probably you will like to have 3 encoders... you can also use linear actuators instead of the stepper motors..
We are looking for a microcontroller development kit with SIM300 or SIM908 or any other modem. that sends gps position to web database by gprs connection. The core of all project is establish a internet connection via GPRS and send to internet database . Also, i presume it has sim card slot also. Request you to send me the link of any such pr
Kunal, I may sugest you to use dsPIC instead PIC. Thatīs because it have incremental built-in hardware module, wich allows the firmware to take account of encoder position without need to count incoming pulses, but reading a specific counter register. +++