Notes:

After getting confirmation, it appears the microbot wireless controlled drug release was fake.

The actual tweet.
The article linked is the same, the picture is the same, but the text was altered for shock value:
https://twitter.com/sapinker/status/1095698051870666752

The article it links to:
https://news.harvard.edu/gazette/story/2019/02/microneedle-pill-takes-the-sting-out-of-insulin/

From the article:
"(the pill) houses a needle made of insulin and its injection is controlled by a spring held in place by a sugar disc. The sugar disc allows the humidity in the stomach to serve as the trigger of the micro-injection"

No wireless involved. Just an unusual pill which turns into a mini needle injection.
Sorry for the freakout. Pill dystopia averted.