With V5 brains and motors in an extreme shortage, the BLRS Electronics Team has created a new revision for our V5 ESD Protection Board to protect both motors and ports from dying. Although not competition legal, we highly encourage other teams to also start using this board to prevent themselves from being taken out of the competition due to something completely out of their control. Learn more about ESD protection and ESD in general on the board’s release page.
Our design criteria for this iteration were to:
- Improve the mountability of the board on VEX components
- Improve the ease of assembly without completely assembling the board for students.
- Decrease the unit cost substantially.
This iteration of the board comes with 2 main features that coincide with each other to improve its mountability on VEX components. We’ve added a thoughhole to the board as well as a 3d printable case for 1, 4, and 8 boards. This comes as part of our collaboration with the VEX Cad Project and VEXU team EZ, whom have designed this case and released the files on our wiki page.
For this iteration, we’ve abandoned Oshpark as our vendor for ordering boards and have instead provided instructions on JLCPCB for ordering boards instead. These have had two major benefits for the board:
- We have reduced the price of the board from ~2-3$ to roughly 40 cents for the board without jacks , leaving the price under a dollar with the jacks included. The unit price of the board stands at ~$1 at time of release.
- JLCPCB offers a free SMT service for the first purchase, so there is no need for tediously soldering TVS diodes anymore. You just need to solder the jacks on both ends.
Do note that the boards now come in panelized orders of 50 to reduce the unit price, but for organizations encountering this issue this should be roughly the amount you need anyways per team given 3-4 v5 brains.
Protect your V5 Electronics today ! We make no profit off the sales but provide this as a benefit to the community. We hope you find great use out of this board as not only a way to protect your v5 brains, but also an opportunity to teach future engineers how to solder .
Direct Link: (Hosted on our Wiki)
Thank you for your patronage and support,
- The Purdue SIGBots
P.S. Check out other release notes for the Wiki here: SIGBots Wiki Dev Blog (Fall 2021, Article Revamps + New Features)