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Posted onFebruary 19, 2013May 27, 2025dsPIC33e PIC24e Bootloader

Designing bootloader for Microchip dsPIC33E/PIC24E micro-controller (1)

by Xueming8 Comments on Designing bootloader for Microchip dsPIC33E/PIC24E micro-controller (1)

When speaking about good bootloader product for Microchip’s various MCU product series, I put my two cents in “ds30 Loader” from Mikael Gustafsson. However, “ds30 Loader” is no longer available…

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Posted onJanuary 1, 2013June 13, 2020Electrical Engineering

Synchronize multiple Canon Rebel T4i video shooting with reverse-engineered RC-6 protocol

by Xueming8 Comments on Synchronize multiple Canon Rebel T4i video shooting with reverse-engineered RC-6 protocol

Let’s first take a look at the video clip of how my customized remote synchronize two (or more) Canon Rebel T4i video shooting. Canon Rebel series latest model T4i (as well as…

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Posted onOctober 28, 2012June 13, 2020Electrical Engineering

Save money on PCB fab and how to cut the board apart with CNC mill (or table saw, press drill).

by Xueming3 Comments on Save money on PCB fab and how to cut the board apart with CNC mill (or table saw, press drill).

For lab geeks or hobbyist who often sends out small quantity PCB fab orders but doesn’t care about a little bit extra work, this  post will help save a decent amount of…

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Posted onJuly 7, 2012CAD

Illustrator Javascript to draw a path with more than 1,000 points

by Xueming3 Comments on Illustrator Javascript to draw a path with more than 1,000 points

I don’t know why but it seems that Illustrator only allows Javascript’s setEntirePath() function to draw a path with up to 1,000 points. If you try to pass an array…

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Posted onMay 4, 2012June 13, 2020Laser cut

A way to improve the laser-cut gear tooth profile accuracy (2)

by Xueming2 Comments on A way to improve the laser-cut gear tooth profile accuracy (2)

In my previous post, I talked about generating gear profile with illustrator script. Now it is time to laser-cut it out of the script. The laser-cut I have access to…

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Posted onMay 3, 2012June 13, 2020Laser cut

A way to improve the laser-cut gear tooth profile accuracy (1)

by Xueming2 Comments on A way to improve the laser-cut gear tooth profile accuracy (1)

Laser cutter is a piece of amazing equipment that makes it possible to quickly turn your design into physical parts. When it comes to cutting gears, you will need to…

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Posted onApril 29, 2012June 11, 2020Electrical Engineering

Extend the 3D stereo camera module of LG thrill phone P925

by Xueming34 Comments on Extend the 3D stereo camera module of LG thrill phone P925

This is a quite interesting project which requires digging out the 3D stereo camera module from the LG thrill P925 smart phone and driving it somewhere outside the smart phone.…

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Posted onMarch 4, 2012Electrical Engineering

High speed digital camera — Lupa3000 image sensors arrived!

by Xueming8 Comments on High speed digital camera — Lupa3000 image sensors arrived!

3 pieces of the Lupa3000 (ON Semiconductor product: NOIL1SE3000A) 3.0MP 485fps high speed image sensors actually arrived a while ago. I have been too lazy to post it online. Since…

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Recent Posts

  • Understand addresses in Microchip’s 16-bit MCU and its translation to Intel Hex32 format
  • Fixing CEPH OSD “Down” and “Out” Glitch After Power Outage
  • Programming the USB module of PIC32MZ without Harmony (7) – Put USBDMA to work
  • Programming the USB module of PIC32MZ without Harmony (6) – USBDMA
  • Programming the USB module of PIC32MZ without Harmony (5) – Endpoint Configuration
  • Programming the USB module of PIC32MZ without Harmony (4) – Descriptor
  • Programming the USB module of PIC32MZ without Harmony (3) – Setup and Configuration as USB device

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