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Recent content by ArFa

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    Resetting printer chip

    Hi all, My printer (Lexmark e260) has toner cartidge chip that I want to reset, I sniffed it with I2C Logic Analyzer but I don't know how to do it.
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    Making measurements in closed tanks ?

    I didn't see this link before, I looked there and I think this is what I really need, but in this link it states that I should get sonometer 30 system and I can't use only ultrasonic sensor. I don't need sonometer 30 controller, i want those data in my controller, do you think it is feasible ?
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    Making measurements in closed tanks ?

    Thanks for your helps, I need to know fuel level, not only to detect if there's fuel or not.
  4. A

    Making measurements in closed tanks ?

    I'm sorry for my bad question :S My issue is to measure fuel in a genset tank. So I assume that this tank is from metal and it's very big size. Can I use capacitive sensor ?
  5. A

    Making measurements in closed tanks ?

    Thank you very much for your help. Can you suggest any sensor or any device for this method: Thump the water tank and measure the frequency at which it rings. The higher the water level, the lower the pitch.
  6. A

    Making measurements in closed tanks ?

    Thanks a lot for your ideas. Do you mean that weight measuring will work? I had same idea but I'm still projecting the project and I need some ideas to start with. Thank you
  7. A

    Making measurements in closed tanks ?

    Hi all, Can you give me some ideas about how to measure fuel level and oil level in a closed tank ? It means we can't make any hole, so I don't think that ultrawave sensors will work.
  8. A

    Fuel Tank Level Measuring

    Do we have to make any hole in fuel tank for ultrasonic measurement ? If yes, can you suggest me any method to measure fuel in a tank that we can't make any hole ?
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    LM318 is not giving output at 100kHz frequency

    Hi all, I have an MCU that has output voltage 3.3V with 100kHz, and I want to amplify to 5V with 100KHz also. For this, I used lm318 and configured it as shown below: But, the lm318 gives me output of 3.6V-4.8V and not as is should to give: 0-4.8V ? Why?
  10. A

    Send data with one wire protocol?

    look what wikipedia says: do you think that UART will handle that?
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    Send data with one wire protocol?

    yeah it have a built-in UART, but how to communicate with one wire and UART ?
  12. A

    Send data with one wire protocol?

    Hi there, I want to send data through one wire protocol from stm8. So, stm8 will act as one wire slave device, and send those data to another device through one wire protocol. Please if you can, tell me how to solve this problem !
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    Find Zener breakdown tension?

    Thanks BradtheRad but I have to find that tension with equations and I need exactly that tension :D
  14. A

    Find Zener breakdown tension?

    but I have to find zener breakdown tension and I don't know how to find that...
  15. A

    Find Zener breakdown tension?

    Hi, how are you? Please help me to find the zener breakdown tension in this circuit so that NM(low) = NM(high); NM means noise margin so that NM(low)=Vi(low) - Vo(low) and NM(high) = Vo(high) - Vi(high). Vcc=15V; Vγ=0.65V; Vbe(sat) = 0.75V; Vce(sat) = 0.2V; Vd=0.75; hfe=40...
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