From 493e783355428df2482031511cb84875ebeeeef1 Mon Sep 17 00:00:00 2001 From: Scott Bezek Date: Sun, 13 Feb 2022 11:11:13 -0800 Subject: [PATCH] Update README.md --- README.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/README.md b/README.md index f9e1cb7..80ee9a5 100644 --- a/README.md +++ b/README.md @@ -9,6 +9,8 @@ Coming soon... ### SmartKnob View Premium SmartKnob experience. Under active development. +![Exploded view](doc/img/explodedv145.gif) + ### SmartKnob Handheld An exploration of a small handheld form-factor. Under active development. @@ -24,6 +26,8 @@ A decent choice, and easy to prototype with using [Adafruit's QWIIC breakout boa In my testing, it is a little noisy, requiring filtering/smoothing that can slow responsiveness, hurting control loop stability. Or, with less filtering, the noise can easily be "amplified" by the derivative component in the PID motor torque controller, causing audible (and tactile) humming/buzzing. +There is also apparently a somewhat common issue with the internal ADC locking up, requiring a device reset (see datasheet section 5.6). From a random sample of 4 Adafruit breakout boards, 2 of them (50%) appear to be extremely prone to this - locking up within a minute or so of use! Further testing is planned, but this may be a deal-breaker. + As of 2022-02-08, there is limited availability of this IC. [Datasheet](https://www.mouser.com/datasheet/2/196/Infineon_TLV493D_A1B6_DataSheet_v01_10_EN-1227967.pdf)