Blog

Finisher prize

weiwei2 — Tue, 07 May 2019 13:47:36 GMT

I have received my finisher prize today. Thanks element4 The interesting is that it is programmable. It is the first programmer quad copter I have(read more)

Sixth Sense GraffitiBot - prizes - Blog 21

dougw — Wed, 01 May 2019 05:19:40 GMT

The Sixth Sense Design Challenge had a mystery finisher prize which just arrived.It turned out to actually be 3 prizes, all very cool.There was an arduino MKR Zero which is a small but powerful MKR arduino with an ARM Cortex M0 and an SD card slot. T...(read more)

Automatic Weeding Robot - Final Countdown - Blog #15

weiwei2 — Tue, 26 Mar 2019 05:15:32 GMT

Really did a last minute rush to complete it, although very much scaled down in term of operation from what i originally envisionThe bot with power bank to power up the Nucleo, load cell and Hx711 based board that utilize the load cell FX1901the boar...(read more)

Sensortile-Automatic Weeding Robot #14

weiwei2 — Tue, 26 Mar 2019 01:39:36 GMT

The sensortile website at https://www.st.com/content/st_com/en/campaigns/sensortile-edu.html provides wealth of information though somewhat confusing(e.g in the curriculum tutorial suddently it has Linux based beaglebone) Anyhow, we follow...(read more)

#9 UAV Inspection System- Progress so far.....

uavr&d — Mon, 25 Mar 2019 13:40:56 GMT

So we have been making slow but steady progress with our inspection system. Since this marks our completion of ten blog posts, we decided to do a brief review of what we have accomplished so far and all that is left to be done. We set out with the in...(read more)

Sixth Sense GraffitiBot - Summary - Blog 20

dougw — Mon, 25 Mar 2019 07:26:00 GMT

GraffitiBot is a fully autonomous ground vehicle capable of printing graphics on the surface it is traversing. This crude attempt artistic rendering at writing "E14" demonstrates what the GraffitiBot accomplished on the last day. Update The...(read more)

Sixth Sense GraffitiBot Printing Graffiti - Blog 19

dougw — Mon, 25 Mar 2019 06:17:54 GMT

Well - it is the last day of this marathon design challenge and everything pretty much needs to go flawlessly to produce actual graffiti. But of course a lot of things are not going right. All the subsystems have been tested and are working well, but...(read more)

Motor control with Nucleo-F411RE-Automatic Weeding Robot #13

weiwei2 — Sun, 24 Mar 2019 19:41:33 GMT

My previous blog is kinda long, so i put the motor control outcome in this blog instead after verifying that the nucleo bot is producing PWM and DIR signal, i test it on the robot. The nucleo is powered up with the always on powerbank, whereas t...(read more)

Programming Nucleo-F411RE with MBED- Automatic Weeding Robot #12

weiwei2 — Sun, 24 Mar 2019 18:55:44 GMT

MBED maintains all the supported board programming reference at https://os.mbed.com/platforms/ For our board, F411RE, it can be referred at https://os.mbed.com/platforms/st-nucleo-f411RE/i copy some of the essence here Converting from ArduinoThe ...(read more)

Testing the nucleo-64 and connecting it to motor driver - Automatic Weeding Robot #11

weiwei2 — Sun, 24 Mar 2019 18:53:23 GMT

NOTE: i actually forgotten about this #9 blog so only post it today, few weeks after i initially work on itmy blog 12 is the coding sequel to this IntroductionThere are multiple IDEs that can be used with the Nucleo-64 STM32F411 Today, i tr...(read more)

Sixth Sense GraffitiBot Hydraulics - Blog 18

dougw — Sun, 24 Mar 2019 18:10:36 GMT

The GraffitiBot is now fully functional for printing graffiti although there is still a lot of room for improvement of the print head nozzles. It took quite a bit of work to get the hoses to curl properly without kinking. The kinks were making ...(read more)

motorized scissor cutting weed - Automatic Weeding Robot #10

weiwei2 — Sun, 24 Mar 2019 10:55:37 GMT

Due to really lack of time, rush out this simple motorized scissorfirst, i cut out a L shaped holder from old table calendar cardboard. it is hard enough and easier to work withAfter that, i glue the scissor to the L-shape holder. well i could have a...(read more)

#8 UAV Inspection Post: GPS To Plan Flight Path

uavr&d — Sun, 24 Mar 2019 10:27:14 GMT

We used iNav for the purpose of flight planning. This blog post is a summary of what we learned about iNav, why we decided to use this and how we planned to implement it. Designed primarily for racing iNAv runs on the flight controller and helps...(read more)

motor sizing for scissor- Automatic weeding robot #9

weiwei2 — Sun, 24 Mar 2019 05:22:08 GMT

time flies, and soon it is deadline for contest.today i am assembling the 'weapon' of the robot, the motorized scissor. First, i want to choose a suitable motor to drive the scissori dig from my collection and found this Tamiya motor set, and...(read more)

Sixth Sense GarffitiBot - First Dry Run - Blog17

dougw — Sat, 23 Mar 2019 18:03:56 GMT

This is a big day - the GraffitiBot made its maiden voyage!www.youtube.com/watchThis was just the first attempt at programming an autonomous route that would test the steering and the main drive.It is literally a dry run, there are no pumps or even r...(read more)