Shared Projects

50mil castelation ICSP jig for Northpaw Nano rev G

• ATMEGA328P-MU (or equiv 32-pin ATMEGA 328/168/etc in MLF footprint)
• MAX4822 (there is no alternative - not even in a different footprint or functionality - this is THE ONLY 3v 8channel PWM/PSAVE with kickback - let me know if you find another (other than MC33996, which is “technically” 5v - see my “Northpaw Mini” versions instead)
• MCP1700T-3002E/TT (or any pin-compatible 200mA 200mV sot-23 LDO)
• 0805 MLCC ceramic capacitors - 0.1uF, 0.22uF, 1uF, 10uF (x2)
• 0805 resistors - 10k ohm (x2) - (for voltage divider. use other values for better voltage granularity)
• LSM303DLHC (magnetometer/accelerometer - LGA)
• 8x 100mA motors
• Ribbon cable
• JST-PH connection to Li-Po/Li-Ion battery (or other 3.0v-6.0v battery pack)
• Optional 0805 LED & 0805 resistor for it (choose for however bright you want, e.g. 1k ohm)

All chips rated 2.3v-3.6v (lsm303 can go lower; and the rest are rated up to 5.5v - and all 85 deg C) lsm303: vdd 2.16v-3.6v; max4822: vcc 2.3v-5.5v; 328p: 2.7v-5.5v@8MHz (1.8v@4MHz)

Programming ICSP on custom pinout 50mil pitch castellation.

“Flora-compatible” mounting holes (random holes near edges, probably sewable)

Active power consumption: 100mA-50mA single motor; 6mA atmega; 1.5mA max4822; 150uA lsm303 (that can’t be right); sleep power consumption (after battery level low): 150uA (typ)/300uA(max) into MAX4822; 8uA into motors (leakage); 1uA into atmega (power-down with PRR off, WDT off, & BOD off); 1uA into lsm303 (so they say) so ~0.2mA after flat battery - so don’t leave it plugged in for weeks after shutdown or it will destroy the battery.

MLX10407 breakout board - essentially implements the example schematic in the datasheet. The specced crystal is the ACH-8.000MHZ-EK from ABRACON, but any 8MHz crystal should work.

Micromouse V2.0 PCB

2 layer board of 1.44 x 0.75 inches (36.5 x 19.1mm) 3 boards will cost $5.35

Hassle free 3D printing using ESP8266 : This LUA code and Adapter for ESP8266 provides wireless networking for RepRap 3D printers. No wired connection is required during the print job - just stream your Gcode up to the ESP module’s IP address.

From the day of its launch, the ‘ESP8266’ is under the spotlight of many makers, electronic enthusiasts and hackers. The Creatorbot team was quite impressed with the ESP module and we were curious to see if we could interface this module with our 3D printer. When we decided to do it, I started researching on the tool chain for developing on the ESP module and found that LUA API from NodeMcu would be a good start. The code quality if definitely not perfect but it works fine. To make it easy to use I have develeopped ESP8266 adapter for RAMPS 3D printer shield using Eagle CAD.

Features:

WiFi enabled G-Code streaming.
Remote control and monitor your printer.
Automatically displays the IP address of ESP module on your printer LCD.
Same adapter can also be used to connect HC-05 / HC0-06 Bluetooth module to RAMPS 3D printer shield.

3D-Printing-ESP8266

This is an all in one board instead of having to use the regulator module, and allows direct plugin to the ramps board

see bein

RFid reader with BLE

A simple maze game based on an ATtiny85 that you navigate with four pushbuttons. The available paths in each direction are shown by four LEDs. A lit LED means that your way is blocked by a wall, and a speaker beeps if you try to move in that direction. When you get to the goal a tune confirms you’ve succeeded.

See http://www.technoblogy.com/show?20UO.

CUI PYB20-Q48-S51 48VDC to 5VDC Isolated converter

for EEPROM 28C256

All needed files are availables here –> https://drive.google.com/open?id=1md9C5Au9TwCAe9fqd97qvTXGewMKVrLg

Suzuki RV90 Electronic Blinker Relay (Tested on a 1977)

• Suitable For 6V Hi-Side systems
• Work on any load up to 10Amps
• Steady frequency of 1.5Hz
• Overcurrent Protection
• No more mechanical parts

For any help, you can contact me at [email protected]

Temperature, Humidity and Pressure with a ESP8266 module

Add-on board designed for the RC2014 computer to provide graphics capabilities.

Schematics, firmware and documentation on GitHub.

A donation to support this and future projects is always welcome!

qfn36 (6 mm x 6 mm) to dip-36 break out board

This is the control board for 8 stepper motors. Each RJ45 connector supplies GND, Step, Direction, and a signal line from a limit switch at the motor. Each motor driver is attached to the motor. Using ethernet cables to easily transfer data signals from Teensy to motor drivers.