Crypto display using ESP32
There are products in the market which display crypto prices.
Ref:
https://how2electronics.com/connecting-esp32-to-amazon-aws-iot-core-using-mqtt/
https://aws.amazon.com/blogs/compute/building-an-aws-iot-core-device-using-aws-serverless-and-an-esp32/
https://docs.aws.amazon.com/iot/latest/developerguide/life-cycle-events.html