April 23, 2017
I ordered a set of 20 around May 2015 and another set of 20 around August 2015. Neither are the hardware version 2.0, but the sets differ in some minor ways.
– motor has silicon pad vs. foam spacer
– different work gear on motor (seems like same size but different color)
– different color of circuit board
– different plastic support for line follow sensor
– different switch length
I am guessing that these are mainly performance improvements, but I am wondering if there are any other differences that I need to know about in order to service/upgrade these. I want to put in the new 2.0 gears and make any other improvements necessary for continued classroom use. I would love to have the encoders on these, but that is not part of the spare parts pack and seems like a difficult upgrade if at all possible.
Anything else I need to know about these differences? I went ahead and upgraded the firmware on the older units. Do I need to upgrade the firmware on the “1.1” units?
August 24, 2015
During V1 we made continuous improvements to Edison.
There is no real Edison V1.1 but later Edisons did have improved parts
The differences you listed are the main differences between May15 Edisons and August15 Edisons.
The upgrade to Edison 2.0 gears will make the most difference. They include a clutch which actively reduces wear on the gear, improving the robustness of the drive system
The silicon pads, increased switch length and changed line sensor support, are minor durability improvements
Edison V1 are incompatible with the encoder wheels seen on the motors in a V2.0
The encoder wheels only change Edison’s behaviour when used with encoder parts. Encoder parts are electronics soldered to the circuit board in Edison V2.0, Edison V2.0 got a change to its circuit board to mount the parts and make them talk to Edison’s microcontroller. As such it is impossible to upgrade an Edison V1 with encoders
April 23, 2017
UPDATE: I purchased two parts kits and upgraded the gears on a total of four of the May 2015 1.0 robots. You are right that this makes a big difference in the robots and the likely durability of the drivetrain. I also ordered one of the 2.0 robots in order to evaluate the benefit of the encoders. We will make a decision this summer about if we scrap the 1.0 robots in favor of a set of 2.0 robots.
I do wish there was something useful that I could do with a set of lightly used 1.0 robots. I may try ebay, but I wonder if these are the types of things that would sell well there. Any good ideas for a donation?