I’ve been using the 3.0 version Arduino Nano on the 2020 Bot, which replaces usual FTDI USB to Serial converter with the less expensive CH340G.
Very rough video instructions are now available on my YouTube channel.
This week I received a box full of possible 2020 Bot parts direct from China. For this order, my goals were to evaluate supplier quality and get an idea on shipping volumes, weights, and costs. I’m seriously considering whether or not it makes sense to offer 2020 Bot kits, or just provide instructions and let everyone fend for themselves when it comes to buying parts. I’ll provide the instructions either way!
Kits would help increase the chance of someone being successful in building a 2020 Bot since part selection and quality could be controlled. Plus, it does help keep the $20 goal in sight since a) I can purchase items at bulk prices, and b) I can break out “just enough” parts for a single kit where otherwise they may only be available in bulk. Part costs are definitely better when purchasing direct. Shipping costs on the other hand, can quickly offset the difference. Once I nail down a few things, I’ll be working with my suppliers to determine optimal shipping methods.
Over the next week I’ll be creating rough instructional videos on how to build the 2020 Bot. They’ll be rough, but functional… Stay Tuned!
Experiments continue on the 2020 Bot! The robot on the left was built using the ubiquitous 28BYJ-48 geared stepper motors and ULN2003 drivers. The robot on the right uses the famous yellow gearboxes plus brush motors with an L9110S dual motor driver board. Which one should I use for the 2020 Bot? Continue reading
Slides from my 2020 Bot presentation to the Nashua Robot Builders. The 2020 Bot is a work in progress…
Here’s a somewhat long slideshow of photos from Maker Faire Shenzhen. I decided to skip World Maker Faire (NY) this year and instead go back to China. The trip was really short, fly 16+ hours, arrive Thursday night, attend Maker Faire Friday, Saturday, and Sunday, then fly home 16+ hours on Monday. Typhoon Haima didn’t really think that was a good plan, and decided to hit the Shenzhen area mid-day Friday. The organizers of Maker Faire postponed the whole event to Sunday and Monday, and scrambled to take down all the outdoor structures Friday morning. Fortunately, the typhoon wasn’t a direct hit, and while it was very windy and rainy, the area was spared a major impact. Faire organizers reassembled the event during Saturday, and opened up on Sunday. As for my visit, well, I’m glad I had at least one day at the Faire! The bright side to the whole trip was that I spent quality time with some really great maker/hacker people in Shenzhen.
Slides from another Nashua Robot Builders presentation:
Well, the EB1 has actually been around a while. It’s the brain child of Tully from Samurai Circuits. A few years back he tried to convince me to work on an inexpensive Arduino compatible platform that could be used for teaching electronics and programming, but without needing a lot of extra pieces (like a breadboard, power supply, USB cables, etc.).
These are the slides from an ESP8266 presentation I gave at a Nashua Robot Builders meeting.