Cons-n-Stuff/popn_pico
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Fix README markdown issues.

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whowechina 2022-09-13 22:41:30 +08:00
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README.md
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@ -24,10 +24,10 @@ Thanks to:
### Step 1 - Buy
* Place order at jlcpcb.com for PCB and plate. Gerber zip files are **/PRODUCTION/PCB.zip** and **/PRODUCTION/PLATE.zip**. Leave everything default in JLC's ordering page (board thickness is 1.6mm). Choose what ever color you like, I prefer white.
<img src="doc/pcb_and_plate.jpg" width="50%">
<img src="doc/pcb_and_plate.jpg" width="50%">
* Order 3D printing service for the case, FDM with transparent PETG filament or SLA with half-transparent resin. If you own a 3D printer, do it yourself. The file is **/PRODUCTION/pico_popn_case.stl**.
<img src="doc/case_3d_print.jpg" width="50%">
<img src="doc/case_3d_print.jpg" width="50%">
* Buy other components (get few more for tolerance):
* 1 * Raspberry Pi Pico (https://www.raspberrypi.com/products/raspberry-pi-pico/)
@ -48,7 +48,7 @@ Thanks to:
* Soldering iron temperature set to around 300°C.
* Use tweezers to hold components.
* Tricks for Type-C socket and 4020 RGB LEDs.
* Put flux on all those small pins. Melt a tiny little bit solder (seriously very very little bit) at the iron tip. Then quickly solder the pins. Flux and very little bit solder is the key.
* Put flux on all those small pins. Melt a tiny little bit solder (seriously very very little bit) at the iron tip. Then quickly solder the pins. Flux and very little bit solder is the key.
* 2 resistors near USB socket are 5.1k ohm, others are all 220ohm.
* Don't forget to solder 3 "holes" which connects to the Raspberry Pi Pico's USB pins.
<img src="doc/usb_soldered.jpg" width="40%">
@ -60,7 +60,7 @@ Thanks to:
### Step 3 - Firmware
* Use a USB cable to connect the PCB to a PC/Mac computer while pressing down the small button on Raspberry Pi Pico. An explorer window will pop up. If it doesn't show up, navigate to a disk labeled "RPI-RP2".
<img src="doc/rpi_rp2.png" width="50%">
<img src="doc/rpi_rp2.png" width="50%">
* Drag the UF2 file (**/PRODUCTION/pico_popn.uf2**) to the root of this new disk.
* The RGB lights will start rainbow effects.
* If it's not working, go back to Step 2 and fix it.