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A project log for Flex Modules

Wearable breakout boards. Flex Modules have 2.54mm castellations for breadboard and solder on to wearable flexible PCBs

chris-hamiltonChris Hamilton 02/12/2015 at 00:280 Comments

I have designed a new 12-axis sensor. This replaces the 10-axis that had the more expensive MPU-9250 and the footprint never seemed to work well. Hopefully this design with the ST LSM9DS1TR is more reliable and adds additional sensors. The BLE 3dB board has been updated and I plan to tune the matching circuit once I can rent a network analyzer. The Qi/USB charger is ready for initial testing as well. I am finishing up what might be the last designs of the USB BiPower (now with OTG) and the STM32 boards. The STM32, BLE 3dB, USB BiPower, and the Qi/USB charger Flex Modules are designed to layout next to each other in a variety of combinations for a wide range of prototypes.

I have had some questions about removing products from Tindie. I am not sure it is permanent. Tindie's new policies may ultimately improve sales, but Tindie pulling listings without notice is not good behavior (I guess I made it worse, but most of listings were of similar 'quality'). Originally I was just trying to update quantities on the PCA9685, but they wouldn't let me update any info unless it matched their new policies so I felt forced to do something.

Anyway, I am mostly concerned with sales tax issues. It worried me and is still a major compliance issue that Tindie ignores over this. I do have an e-commerce platform with our website, so as I make new listings I will likely put them up on both and request WA residents use our site.

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