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  1. RDTech

    flexmod p3 laser drivers

    You still have these left?
  2. RDTech

    Space Discussion Thread

    Its a shame i picked this thread to comment on after all this time, but I couldn't resist. I consider myself relatively intelligent and somewhat educated. My Father, who did in 1993 after working for the US Air Force on programs like MOLE, DSP and many other surveillance programs always smiled...
  3. RDTech

    7.1W 450nm Gravity power Adjustment Maglight OLED screen, TEMP, Current ++

    I sold it years ago... You want one? PM Me.. I can build something similar..
  4. RDTech

    So who's selling drivers now

    Smallest 2-4A boost driver... Shipping to 32926 Florida
  5. RDTech

    Whoaaaa! TPS63020 driver for $8 on TaoBao =)

    I have 25 or so of these ic's and have used them in the white thermally conductive epoxied units above..they're great for both 520nm 1+watt and some efficient 5-6watt 450nm builds. Once set with fixed sense resistor, they are bulletproof. the battery life varies, obviously with duty cycle of...
  6. RDTech

    So who's selling drivers now

    Vladimir is a very honest, talented engineer. The drivers he sells work flawlessly when directions are followed. Those who require analog 0-5V linear control / modulation need look no further. I have purchased a number of his drivers and NEVER had any issues. (Other than MY X-Wife's innate...
  7. RDTech

    7.1W 450nm Gravity power Adjustment Maglight OLED screen, TEMP, Current ++

    Re: 6.35W 450nm Gravity power Adjustment Maglight OLED screen, - Multiple Sensors & I just hollowed out the lens holder so NO light is "clipped" It already uses a NUBM44 diode so it wasn't much of push. Not everyone realizes that when they just bring up the current to any laser with the lens...
  8. RDTech

    7.1W 450nm Gravity power Adjustment Maglight OLED screen, TEMP, Current ++

    Re: 6.35W 450nm Gravity power Adjustment Maglight OLED screen, - Multiple Sensors & Nobody bought it. I just kept it around. Played with it some more.. Its now putting out 7.1W or so.. Changed the settings a bit to make it go on faster and go down slow.. As before, I can still personalize...
  9. RDTech

    7.1W 450nm Gravity power Adjustment Maglight OLED screen, TEMP, Current ++

    Re: 6.35W 450nm Gravity power Adjustment Maglight OLED screen, - Multiple Sensors & Correct on orientation. CCW decrease CW increase I thought of having multiple (proportional)speed changing, using the accelerometers' other axis for limiting how high of an angle the laser could be pointed as...
  10. RDTech

    7.1W 450nm Gravity power Adjustment Maglight OLED screen, TEMP, Current ++

    Re: 6.35W 450nm Gravity power Adjustment Maglight OLED screen, - Multiple Sensors & I was told by my Drill sergeant A long time ago that there were "No Dumb Questions" The Accelerometer measures the force of gravity against the position of the maglight. When the sensor detects a move to the...
  11. RDTech

    Sale: 6.35 W 450nm Maglight with Gravity power Adjustment. $500

    Re: Sale: 6.3W 450nm Maglight OLED screen, Gravity power Adjustment. $650 W/ 32650' Thanks!!! I really do want to SELL this... Am I asking too much at $550? OK...$500 shipped Lower 48 (CONUS) Any takers? M
  12. RDTech

    Sale: 6.35 W 450nm Maglight with Gravity power Adjustment. $500

    Re: Sale: 6.3W 450nm Maglight OLED screen, Gravity power Adjustment. $650 W/ 32650' That is a great question. Since we build laser power meters the calibration was simple. We measured the output at the microprocessor output max (3.3V) which was 6.35W AFTER the lens. We then just calibrated...
  13. RDTech

    7.1W 450nm Gravity power Adjustment Maglight OLED screen, TEMP, Current ++

    Re: 6.35W 450nm Gravity power Adjustment Maglight OLED screen, - Multiple Sensors & THANK you ever so much..! The weird thing is I should have been done with this almost 7 months ago. Being disabled, I get projects in my head, purchase Parts , build stuff, program microprocessors, FORGET...
  14. RDTech

    7.1W 450nm Gravity power Adjustment Maglight OLED screen, TEMP, Current ++

    Re: 6.35W 450nm Maglight OLED screen, Gravity power Adjustment - Multiple Sensors & C Thank you all so much for you kind words and accolades on the laser. I really do want to sell it though . I will go down $100 and ship it free (priority) in the lower 48 states. As stated, I will be happy...
  15. RDTech

    7.1W 450nm Gravity power Adjustment Maglight OLED screen, TEMP, Current ++

    Re: 6.35W 450nm Maglight OLED screen, Gravity power Adjustment - Multiple Sensors & C Reading your post again, you asked about the driver too? Right? Simple current control with microprocessor. Easy to control mosfets so they output bias current, then add to / subtract the current with the...
  16. RDTech

    7.1W 450nm Gravity power Adjustment Maglight OLED screen, TEMP, Current ++

    Re: 6.35W 450nm Maglight OLED screen, Gravity power Adjustment - Multiple Sensors & C I do not remember which one. It was a 12bit SPI very small Analog or Microchip one. I wrote it in c so I really do not have library.
  17. RDTech

    7.1W 450nm Gravity power Adjustment Maglight OLED screen, TEMP, Current ++

    Re: 6.35W 450nm Maglight OLED screen, Gravity power Adjustment - Multiple Sensors & C The output reading is linear (like a look up table). The output from the Accelerometer after being fed into and processed is sent to a DAC (digital to analog) converter and right to the analog input of the...
  18. RDTech

    Sale: 6.35 W 450nm Maglight with Gravity power Adjustment. $500

    I had an Idea to make a laser differently. So, I was happy to purchase a Silver mag-light From Jayrob (The Man!) . Very Large air cooled / finned aluminum heat-sink. Video in (Operation) https://youtu.be/U1HLLiozblE What I did different was to put a 80MHz ARM processor, dual Color OLED...
  19. RDTech

    7.1W 450nm Gravity power Adjustment Maglight OLED screen, TEMP, Current ++

    :wave:I had an Idea to make a laser differently. So, I was happy to purchase a Silver maglight From Jayrob. Very Large air cooled / finned aluminum heatsink. As nobody has purchased it I had a chance to erradicate bugs and got the output to 7.1W.. Interested? Make me an offer, cash/partial...


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