Multiwii 2.4 arduino uno pinout update#
Multiwii 2.4 arduino uno pinout software#
Multiwii 2.4 arduino uno pinout code#

When designing something, itвЂ™s nice to have some references to compare against. The sensor axis and motor spin directions are shown in the image above. I decided on a X mode frame instead of + mode frame mainly because I had a general idea of how the PCB was going to be laid out. IвЂ™m not a stranger to quadrotor helicopters, see and learn about the basics of quadcopters. However, please read step 6 to see why you should use the motors from version 1 instead. The motors in version 2 comes with the propellers pre-attached so the drilling is no longerВ necessary. In version 1, the propellers required a drilling before they fit onto the motor. In version 1, the flyback diode for each motor was mounted onto the arms, but in version 2, the flyback diodes are in the main quadcopter body PCB instead. I managed to solder the QFN chips with a heatgun. Version 1 is soldered using the reflow soldering method (see my other instructable: ), version 2 was not due to time constraints and l didnвЂ™t bring my oven to school. I think itвЂ™s a good idea to show people my other techniques so everybody can learn from both the benefits and mistakes. This instructable will focus on building version 2 due to the flaws in version 1, but I have a lot of pictures taken during the construction of version 1, IвЂ™m putting them all in this step. Oh and I noticed that вЂњAdBlockвЂќ stops Instructables from showing you all my pictures, so please turn it off.ДЄrduino based Drone Quadricopter Step 1: Version 1вЂ™s Build Log If you are wondering about the lack of a flight video, see step 6 for an explanation. Although I really recommend you only take my concepts and design everything from scratch yourself instead, just so thereвЂ™s absolutely no mysteries in your project. It contains files for вЂњversion 1вЂќ only for reference purposes, please only use вЂњversion 2вЂќ files.

Multiwii 2.4 arduino uno pinout update#

Now it isВ FebruaryВ and I just finished вЂњversion 2вЂќ, but since IвЂ™ve already written the majority of the Instructable, I have some bits of вЂњversion 1вЂќ text that IвЂ™ll just cross out like this, and then update it with the changes in вЂњversion 2вЂќ.ДЄll project files are available to download in this instructable вЂњstepвЂќ. Then I went on vacation for a few weeks, and also school just started. I originally finished building вЂњversion 1вЂќ in November, and wrote the Instructable in November.

Multiwii 2.4 arduino uno pinout code#

This project was originally named вЂњPalmQuadвЂќ since itвЂ™s small enough to fit in your palm, so if you might see some mention of this name in the code or pictures.

This Instructable documents вЂњversion 2вЂќ, but you may see pictures of вЂњversion 1вЂќ in some places. The first one worked well and IвЂ™m extremely proud of it, but it did have several flaws, enough flaws to justify a remake. This is actually the 2nd such tiny quadrotor helicopter IвЂ™ve built. Heavy use of Arduino and Zigduino involved.

All open source project, schematics + PCB + code all available.

Two layer 1.6mm thick FR4 PCB used (this is the default for a lot of PCB manufactures), the components are all on a single side (easy to assemble).

The вЂњarmsвЂќ and вЂњbodyвЂќ are connected by locking slots, making them easy to build and repair.

This particularВ ATmega has a built-in 2.4GHz transceiver, 16 possible channels, 250kbit/s or 2mbit/s max depending on the standard being used.

Uses ATmega128RFA1 microcontroller for both copter and transmitter.

Controller battery is a single Li-ion cell, 3.7V, 1000mAH.

Flight battery is a single Li-poly cell, 3.7V, 350mAH, 20C.

Motors are supposedly вЂњX-TwinвЂќ spare motors, they come with the propellers.

Diagonal motor to motor distance is 110mm.

Running a modified MultiWii firmware, which is open source, written with Arduino and Processing.

Controlled using a Wii Classic Controller, which plugs into the transmitter.

When the copter plugs into the transmitter, the user can synchronize to a random radio frequency.

USB battery recharging on the transmitter, the copter plugs into the transmitter to recharge.

MPU-6000 gyro &В accelerometer sensor for flight stabilization.

My design files are meant for 5.11 so use that instead.

Multiwii 2.4 arduino uno pinout software#

Update Feb 25 2012: Warning, I may have discovered a bug inside the CadSoft EAGLE 6.1.0 software that may make the PCB look slightly different.