My Ghostbusters collector’s edition

This year is the 30th anniversary of the first Ghostbusters movie (1084). To celebrate the event, Lego is selling – thanks to the Lego Ideas project – SET 21108 that includes the ECTO-1 and four minifigs: I had the idea to create my personal collector’s edition for the blueray (from Amazon) of the two movies using that Lego set: a plexiglass display case with…

SDWebServer – enc28J60 and Arduino (20)

In the previous blog post, you learned how to send big files (html pages, images…) with your ENC28J60 shield. Today I’m going to show you a complete webserver! Description The user’s browser sends a request, through the network, to the ENC28J60 module. The request is analyzed by the sketch that is running on the Arduino, which also prepares the…

4ld: ESC calibration

The kit I brought from RCTimer included 4 ESC running the SimonK firmware. This firmware allows to calibrate the minimum and maximum values for the PWM signal. First you must connect the ESC directly to the receiver (bypassing the Naza flight board) on channel 3: I also verified the motor direction of each motor, based on  the diagram included in Naza manual. To…

4ld: Turnigy 9x transmitter pack

In my previous post, I described the Turnigy 9x radio I chose for my quadricopter. The transmitter requires 8 AA batteries… looking for a more convenient solution to power it, I found on HobbyKing a suitable battery pack: This battery pack is built using LiFe or LiFePo4 (litium-ferrophosphate) cells. Those cells have a nominal value of 3.3V, different from the…

4ld: the radio has arrived

I finally received from HobbyKing the radio to control my quadricopter: a Turnigy 9x mode2 that also includes an 8-channels receiver: As I wrote in the first blog post about the building of my quadricopter, Mode2 means that the left stick is the throttle. With some modifications, it it however possible to convert the radio from one Mode to the other,…

4ld: Building

Last Saturday I had some spare time to build my quadricopter… First, I tinned (with the help of some flux) the power pads on the bottom frame:   then I soldered (with the correct polarity: red wire = +) the 4 ESCs and the female connector (XT60) fior the LiPo battery:   I soldered at the same pads used…