loading
7CommentsJoined January 13th, 2011

Tell us about yourself!

Complete Your Profile
  • seaprimate followed HackerBoxes5 days ago
      • HackerBoxes 0018: Circuit Circus
      • HackerBoxes 0017: Power Maker
      • HackerBoxes 0016: Cellular Metal
  • seaprimate made the instructable HackerBoxes 0017: Power Maker5 days ago
    HackerBoxes 0017: Power Maker

    Not gonna lie, this one was slightly outside my comfort zone at first, but finally got the bench supply built. Worked first time no probs! This is definitely useful, and I learned a lot! Thanks for the project and experience!

    View Instructable »
  • seaprimate commented on HackerBoxes's instructable HackerBoxes 0018: Circuit Circus3 weeks ago
    HackerBoxes 0018: Circuit Circus

    Situation Solved!Turns out it was a bad cap. ** It got easier to turn on the more I held the button down, like it was charging, but when left alone, the tester acted like it would discharge and go back to not wanting to turn on. ** I hooked my ammeter in line with the battery, and would watch the mAs used slowly and steadily drop while I held the button. Leave it alone for a while, and the mAs needed had crept up. ** Suspected it was a capacitor. Checked them both with my multimeter One would slowly move to infinite resistance like it was supposed to, the other one closest to the power supply had no resistance, meaning it wasn't working. ** Replaced the bad cap with one that came in the Modern and Analog electronics kit. After the first few tries of doing what it used to do, it now w...see more »Situation Solved!Turns out it was a bad cap. ** It got easier to turn on the more I held the button down, like it was charging, but when left alone, the tester acted like it would discharge and go back to not wanting to turn on. ** I hooked my ammeter in line with the battery, and would watch the mAs used slowly and steadily drop while I held the button. Leave it alone for a while, and the mAs needed had crept up. ** Suspected it was a capacitor. Checked them both with my multimeter One would slowly move to infinite resistance like it was supposed to, the other one closest to the power supply had no resistance, meaning it wasn't working. ** Replaced the bad cap with one that came in the Modern and Analog electronics kit. After the first few tries of doing what it used to do, it now works exactly like it should, with both the dc from a wall plug transformer, and with a regular 9v battery!!!So if the LED is in the right spot, but still having trouble, check the capacitors next with your multimeter, if the ohms aren't rising from 0.00 - O.L, you've got a bad cap. Now to 3d print a case!

    So, everything is soldered up, but it only stays on as long as I hold down the barrel selector, and it will go to the menu, but not let me select anything and after a few secs will go to Vext=0mV. the minute I stop pressing the barrel selector, it turns off. Also the LED will not light up, despite verifying correct polarity. Any suggestions?

    View Instructable »
  • seaprimate made the instructable HackerBoxes 0018: Circuit Circus3 weeks ago
    HackerBoxes 0018: Circuit Circus

    this is the same one where the 9012 transistor gets hot. Verified 9v with the dc power supply with multimeter. Not sure if transistors can short internally, or if a bad capacitor can cause this unsteady power. It acts as if batteries were dying, even though it's from a steady dc power suppl. I also noticed that after frequent attempts to keep it on, it works better and better each time, eventually staying on and working normally through all the menu options, though once power is disconnected or I leave it alone for a while, it's back to not doing anything and have to go through the same repetitive process shown in the videoI'd love to hear any ideas on how to troubleshoot this.

    View Instructable »
  • seaprimate made the instructable HackerBoxes 0018: Circuit Circus3 weeks ago
    HackerBoxes 0018: Circuit Circus

    this is the same one where the 9012 transistor gets a little warm. Verified 9v with the dc power supply with multimeter. Not sure if transistors can short internally, or if a bad capacitor can cause this unsteady power. It acts as if batteries were dead, even though it's from a steady power supply I'd love to hear any ideas on how to troubleshoot this.

    View Instructable »
  • seaprimate made the instructable HackerBoxes 0018: Circuit Circus3 weeks ago
    HackerBoxes 0018: Circuit Circus

    Only works when I hold it down, sometimes it will stay on for a second or two, but otherwise turns off. I originally desoldered, resoldered the LED because I read people had problems with the polarity, but I had it right the first time. There are no shorts or bridges that I can see, is that a capacitor issue? Also, when using a 9v battery rather than the barrel connector, the screen is dimmer, and never goes to menu. I'm out of ideas

    View Instructable »
  • seaprimate commented on HackerBoxes's instructable HackerBoxes 0018: Circuit Circus3 weeks ago
    HackerBoxes 0018: Circuit Circus

    Does anything special need to be done to use a raspberry pie as an oscilloscope? Are can you use it like you would any laptop running linux?

    Does anything special need to be done to use a raspberry pie as an oscilloscope? Or can you use it like you would any laptop running linux?

    View Instructable »
  • seaprimate commented on HackerBoxes's instructable HackerBoxes Robotics Workshop5 months ago
    HackerBoxes Robotics Workshop

    I'm having trouble with the MeArm. It will randomly jerk all the way back, sometimes it'll move down but not up, can't get the base servo to work at all on blynk despite trying all the digital pins. Not familiar with the NodeMCU, but it won't connect when on the shield. Is there a way to connect to it using ssh or something to see what it's actually doing? Thanks!

    View Instructable »
  • HackerBoxes 0003: Amateur Radio, Arduino Nano, Satellites, Packet, APRS

    Don't you have to have an active ham radio license to operate on 2m/70cm?

    View Instructable »