Parakeet Case / Removeable Battery

thingiverse

Parakeet uses a SIMM800L instead of a cell phone to upload data to Nightscout. About: This case was influenced by Lehaiver's xDrip Wireless Bridge Case v1.7 for the Nightscout/xDrip project: http://www.thingiverse.com/thing:1481048 Assembly: I have a basic printer that doesn't do well with overhangs, so boards could only be located. I used epoxy to secure the boards in place and CA (instant glue) for the cover. Switch height is critical; it should not open or close when the case is laid face down on a flat surface. The thru hole is meant to be drilled to final size. Use CA to glue the ring to the battery door, check and adjust the door fit to the case. I left this intentionally "tight"; it opens easily by wedging a utility knife blade between the door and case. Attach 3.0mm thick foam to the bottom of the ring; foam should contact the battery and not let the door deflect. Refer to the project page for electronics assembly instructions. Once you have the electronics assembly wired, double-check your connections and place it in a cast-iron frying pan away from anything flammable. Be careful not to short anything out; insulate if necessary. Fully charge the lithium battery, power up, check operation, and your battery should not get hot. Mount the electronics in the case and secure with epoxy. I secured the back cover with masking tape and tested for a couple of days to confirm operation before gluing it permanently in place. Project Documentation: Parakeet Project Page https://jamorham.github.io/#parakeet What is the Parakeet? https://drive.google.com/file/d/0B6mvYVNVC-fOQU5XQS14NERwYjA/view?pref=2&pli=1 Parakeet Project Documentation https://github.com/jamorham/wixel-xDrip Video setup instructions https://www.youtube.com/watch?v=sq1Vs4Vor7c The YouTube video made by Andrew Abramowicz is well put together - complete and very helpful. However, I couldn't get my Wixel FW to compile using "make_all.bat." So, I ended up using the "MAKE" command from S. Black's xDrip documentation (How do I use it? Step 3). This may just be a Windows 10.xx issue. Parts List: Battery Terminal, Spring Type 3mm pitch http://www.ebay.com/itm/12-Pcs-3mm-Pitch-Spring-Type-Battery-Connector-Right-Angle-SMD-SMT-3-Terminal-/311571708683?hash=item488b1efb0b Switch, Latching 17x12x9mm http://www.ebay.com/itm/6-Pcs-Horizontal-2-Position-Latching-Action-Torch-Push-Button-Switch-/321687308113?hash=item4ae60ec751 Adafruit Mini Lipo w/Mini USB adafruit.it/1905 https://www.adafruit.com/product/1905 NOKIA BL-5C 3.7V 1020mAh http://www.ebay.com/itm/2-x-Cell-Phone-Battery-for-Nokia-BL-5C-1650-1680-1681-1101-1110i-1200-1208-6205-/281848334118?hash=item419f784726 Wixel https://www.pololu.com/product/1337 SIM800L-GPRS-GSM-Module-Card-Board-Quad-band-Onboard-Antenna http://www.ebay.com/itm/US-Smallest-SIM800L-GPRS-GSM-Module-Card-Board-Quad-band-Onboard-Antenna-/272409841847?hash=item3f5a0e474f KONEKT SIMM Worldwide Coverage Data Pricing: https://konekt.io/pricing Card: https://konekt.io/store Print Settings: Printer: Prussa i3 Supports: Yes Resolution: 0.08mm Layer Height x 0.05 Nozzle Infill: 100% Notes: Maker Geeks ABS 1.75mm 240C Extruder 100C Bed. Brim x 5 passes. I build up a .15mm even layer of "Elmer's Disappearing Purple Glue Stick" over bare BS Glass and a .2mm initial layer to control warping. I can usually run several parts through before having to reapply. Allow parts to cool to room temperature, and they should self-release. Will Spall Glass over time.