Fiddy - the FTDI Clip

Transcription

1 Fiddy - the FTDI Clip Created by Timothy Reese Last updated on :18:04 PM UTC

2 Guide Contents Guide Contents Overview FTDI is Great! Things you'll need: What You'll Learn: 3D Printing Assembly TTL-232 Instructions You're done! CP2104 Instructions You're done! Programming: Adafruit Industries Page 2 of 31

3 Overview FTDI is Great! But header pins can get in the way of your next tiny project. For the benefits of FTDI, without the bulk of header pins, Fiddy comes to the rescue. Using a spring, pogo pins, and a extreme optimism, Fiddy chomps down on the headers on your Pro Trinket, delivers and receives the debugging and programming information you need, and then speeds off to a glorious life once finished. Adafruit Industries Page 3 of 31

4 Things you'll need: 3D Printer Soldering Iron Pliers, specifically needle nose, and regular/broad Flush cutters #000 Screwdriver 4x M2 6mm Rounded head screws: McMaster ( 1x 3/8"x 3/4" Compression Spring: Amazon ( 1x 2mm thick round toothpick 6x "Spear Head" pogo pins Either a FTDI Serial TTL-232 USB cable, - OR - Adafruit Industries Page 4 of 31

5 a CP2104 Friend, plus: Female jumper wires 1x 6-wide single row housing pack What You'll Learn: How to assemble a joint with a spring, using a toothpick as the hingepin Adafruit Industries Page 5 of 31

6 3D Printing Click here to download the.stl Files for Fiddy on Thingiverse You don't need to print supports for any of these files, as long as they're printed in the orientation shown below. Adafruit Industries Page 6 of 31

7 Assembly Take a fresh, round toothpick, and first insert it into the top and bottom pieces, through past the taper. Be gentle, and if it seems stuck, you can twist the toothpick slightly like a screw. Adafruit Industries Page 7 of 31

8 Once primed, it's time for the assembly. Place the 3/8" x 3/4" compression screw into the ring on the bottom piece, and place the Adafruit Industries Page 8 of 31

9 top piece in alignment so that the holes line up. Now insert the toothpick into the lined up holes on both pieces. If it gets stuck, you can use a pair of broad pliers to push the toothpick through, but it's important to be very gentle or Adafruit Industries Page 9 of 31

10 the toothpick will splinter. Adafruit Industries Page 10 of 31

11 Once through, snip off the excess with the flush cutters. Adafruit Industries Page 11 of 31

12 Now use the tip of the #000 screwdriver to prep the holes for the screws. Stick the tip through each hole that will receive a screw, and twist it back and forth a few times cut a tiny chamfer. This helps when using tiny screws. Adafruit Industries Page 12 of 31

13 Laying the face flat on the table, screw in the M2 x 6mm screws until they're flush with the bottom of the face. Adafruit Industries Page 13 of 31

14 Get out your pogo pins, it's time to add some teeth. Adafruit Industries Page 14 of 31

15 TTL-232 Instructions Congratulations, you don't need to solder for the TTL-232 version of Fiddy. I used an excess header pin to prep the holes on the female pins in the housing case. Then, using a pair of needle nose pliers, gently push the pogo pin into the female jumper holes. Use very little force and go slow, or the pins will bend. Adafruit Industries Page 15 of 31

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17 Make sure all 6 are flush. If the plastic on one jumper becomes deformed, don't worry about it. As long as the Adafruit Industries Page 17 of 31

18 connection is solid in the female jumper pin, you're golden. Place the toothy enclosure into the top plate slotting, with the green wire on the left side, and the black (ground) wire on the right side. Adafruit Industries Page 18 of 31

19 Finish screwing in the face to the top. Adafruit Industries Page 19 of 31

20 You're done! Adafruit Industries Page 20 of 31

21 CP2104 Instructions Adafruit Industries Page 21 of 31

22 Congratulations, you get to solder! Get out your rainbow pack of female jumpers. Separate out 6, and detach them as a unit from the main pack. Make sure to find a green one, to set your registry point. Adafruit Industries Page 22 of 31

23 Snip one row of jumpers, all flush with one another, and begin by soldering the green lead (stripped and tinned) into the RTS pinout on the CP2104. Adafruit Industries Page 23 of 31

24 Then solder in the rest. When done, insert the other end (jumpers still attached) into a 6-wide housing. Adafruit Industries Page 24 of 31

25 I accidentally inserted my ground wire into the far right slot, instead of the far left (indicated by an arrow.) It still works, but best practice is to get the orientation correct. Then, using a pair of needle nose pliers, gently push the pogo pin into the female jumper holes. Use very little force and go slow, or the pins will bend. Repeat 5 more times to complete the smile. Adafruit Industries Page 25 of 31

26 Place the toothy enclosure into the top plate slotting, with the green wire on the left side, and the blue (ground) wire on the right side. Finish screwing in the face to the top. Adafruit Industries Page 26 of 31

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28 Connect the micro-usb cable to the CP2104. You're done! Adafruit Industries Page 28 of 31

29 You're done! Adafruit Industries Page 29 of 31

30 Programming: Select the correct FTDI heading under boards in the Arduino software. Adafruit Industries Page 30 of 31

31 Adafruit Industries Last Updated: :18:03 PM UTC Page 31 of 31