Is there a gadget to help Mom keep better track of her medications?
To answer your question, yes, a gadget for medication management exists, but they range in how comprehensive a problem they are trying to solve. It sounds like your mother would not benefit from a simple reminder call, but might do better with a pre-loaded canister of pills like her current weekly pill box. The difference would be the automatic reminder aspect (blink, beep, alert). There are three approaches that are worth considering -- one is a pill container which could be used just for her thyroid medication called GlowCaps from Vitality -- available through Walgreens (learn more at http://www.rxvitality.com/glowcaps_howglowcapswork.html).
Pill canisters with automated reminder capability include MedMinder (https://www.medminder.com/), TabSafe (http://www.tabsafe.com/), and MedSignals, where the pill canister can be detached, making it portable (https://www.medsignals.com/default.aspx).
Most important with electronic pill canisters: careful loading of the doses and configuring the alerting list of contacts if an individual like your mom does NOT take a specific dose.
The best thing ever is a MEDQ Pillbx. I set it for two weeks. When it's time for my Mom to take my pills. It flashes in the individual box she needs to take. If she don't see it an alarm beeps as well. She haven't missed a pill in months. She ended up in the ER last Aug from triple dosing. This "All-in-One" electronic pill dispenser is great
MEDQPILLBOX.com and its only 40 bucks. It's Amazing