I wonder which IoT devices are affected, beyond DIY, that people actually use in North America.

Not with that attitude!

J/K we were set to have a couple plants ready to go this year, but who knows now?

https://toronto.citynews.ca/2024/04/25/heres-a-list-of-recent-electric-vehicle-and-battery-plant-announcements-in-canada/

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The ESP32 chip, developed by Espressif Systems, is widely used in various IoT (Internet of Things), embedded systems, and consumer electronics due to its low power consumption, built-in Wi-Fi & Bluetooth, and high processing capability.

Devices That Use the ESP32 Chip

1. Development Boards & Microcontrollers

ESP32 DevKit series (official Espressif boards)

M5Stack and M5Stick series

Adafruit HUZZAH32

SparkFun ESP32 Thing

LilyGO T-Series (T-Display, T-SIM, T-Watch, etc.)

WEMOS Lolin D32/D32 Pro

2. Smart Home & IoT Devices

Sonoff Smart Switches and Plugs (e.g., Sonoff Mini R3, Sonoff S31)

Shelly Smart Relays (e.g., Shelly 1, Shelly 2.5)

Tuya-Based Smart Devices (many smart home products use Tuya firmware on ESP32)

Air quality monitors (e.g., AirGradient open-source air sensors)

IoT Sensor Hubs (various DIY and commercial solutions)

3. Wearables & Portable Devices

TTGO T-Watch (ESP32-based smartwatch)

Heltec WiFi Kit Series (LoRa-enabled IoT devices)

Fitness trackers (some DIY and prototype models)

4. Robotics & DIY Electronics

ESP32-CAM (ESP32-based camera module)

DIY drones & robots (used in hobbyist and educational robotics)

3D Printer controllers (e.g., ESP32-based Klipper controllers)

5. Industrial & Commercial Products

ESP32-based vending machines (wireless payment systems)

Smart irrigation controllers

Energy monitoring devices (e.g., OpenEnergyMonitor)

Smart locks & security systems

6. Audio & Multimedia Devices

ESP32-based web radios

DIY Bluetooth speakers

Smart light controllers with voice assistants

Why Is ESP32 Popular?

✔ Low-cost & powerful (dual-core, Wi-Fi, Bluetooth) ✔ Great for DIY & commercial IoT applications ✔ Strong developer community & open-source support ✔ Compatible with Arduino, MicroPython, ESP-IDF, etc.

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Thanks for that! The analysis you present doesn’t seem to account for the Jokers having variable values based on information only you and the receiver have predetermined, which is what I would propose to help solitaire be more secure. Also, a non-standard deck would help, such as a tarot deck.

I recommend the solitaire cipher.