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  1. kellys_eye

    Connectors/cables suitable for removable modification boards?

    @heavans1994 has the right idea - getting hold of the pins/sockets for 'self-assembly' shells is straightforward enough but many people have spare plug/sockets that can be canabalised if you don't want to make a specific order for parts.
  2. kellys_eye

    Help repair power plug port

    Difficult to say. Many boards like those are multi-layered and the thru-hole plating takes the voltages to those layers within the hole itself. Poor de-soldering can often strip the 'tube' of plating that interconnects the layers and therefore you can't easily establish whether the track...
  3. kellys_eye

    Massage Chair Hand control Problem

    There is no reason why the crystal frequencies should match - why would you make the assumption that 'matching' is a requirement for 'working'?
  4. kellys_eye

    Electronic kart

    Using any motor other than a 12V one will introduce problems you could do without. An old car starter motor will provide more torque than you will ever need, can be controlled/regulated with a relatively simple MOSFET arrangement, won't require much (any?) gear reduction, is cheap and commonly...
  5. kellys_eye

    Identifying equivalent for surface mount diode from photo

    If my opinion is that highly valued :p and it winds @davenn up a little then yes, it's a 47Ω resistor!
  6. kellys_eye

    I need help for find this companent

    What is the device the analogue signals are feeding into?
  7. kellys_eye

    Motor control application

    You're talking motor control - not video manipulation! You don't need processing 'power' to control a motor!
  8. kellys_eye

    Type of sensor for project

    I reckon you could use an Arduino..... I mean, people suggest one for practically every other 'solution' I read of....... We keep chickens too and have to despatch them now and again. Simple neck stretching or a hatchet job never fails.
  9. kellys_eye

    Long range rc circuit

    Many LoRa modules will support these functions and have more range than you require. You can get them for 400MHz and 800MHz bands. https://www.rfsolutions.co.uk/radio-modules-c10/name-c49/lora-c218
  10. kellys_eye

    Faulty massage chair, virtually brand new ,advice please?

    They are acting illegally - and they know it. Responsibility lies with the RETAILER, not the manufacturer and they have a legal obligation under the Consumer Rights Act 2015 (UK) to either repair or replace the defective item. The 'warranty' will be for a minimum period however LEGALLY you...
  11. kellys_eye

    PIR help/info

    The PIR devices require their own power supply but usually have a set of 'volts-free' contacts that you can use to switch any external appliance.
  12. kellys_eye

    I need help for find this companent

    What is the board from? Does the equipment have a technical manual? If you could find the manual you might find the BOM (bill of materials) where the part number is identified. Have you tested/measured the parts? Series resistance? Is the 'case thing' actually earthed?
  13. kellys_eye

    I have an indoor plant ecosystem "light and fan" controller board that stopped working.

    Test the battery on the edge of the board (CR1225, 3V beside the CLOCK label). The unit seems to rely on this to check the time for the on/off intervals as it is a 'real time clock' circuit and, without the information, may default to an 'all-off' situation to prevent harm to plants/animals...
  14. kellys_eye

    Dead Asus X550e Battery pack

    PS - I have better things to do than work for you....... sheesh....
  15. kellys_eye

    Radio Control Transmitter Help

    Looks like the power leads go via a charging socket(?) up to the main board. Check that the socket contacts haven't corroded or got dirty. Push a plug in/out of there a few times to 'clean it up'.
  16. kellys_eye

    Faulty Receiver

    Is it captioning 'bleeding through'? You'd need a full schematic of the set to determine where to localise/isolate the actual fault to.
  17. kellys_eye

    repair power supply pc

    Your lack of understanding could be potentially fatal. The 300-odd volts appears after the bridge rectifier - no volts could mean either the main fuse has blown or the bridge rectifier has (or both) or the surge suppressor has gone open etc etc. Since they are so cheap and readily available...
  18. kellys_eye

    Toothache

    Might be something in that. I'm taking 3 Ibuprofen, four times a day and the pain is as good as gone. Will still be seeing the dentist Monday anyway though.
  19. kellys_eye

    Digi pot for pwm board

    Page 7 of the datasheet explains how the U/D pin works in conjunction with the chip-select and INC pins.
  20. kellys_eye

    Tractor fuel sender not working

    If the 'sender' isn't running then the supply is missing. It's presumably powered from the ignition circuit via a fuse. For equipment of the age you're talking about it's common for moisture to get into the wiring - look at the connectors at the end of the wire and where you should see...
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