Whats this

Use a Raspberry Pi Pico, running MicroPython, to read the temp and humidity from a DHT sensor, displaying on a OLED screen

Installation

• Ensure your Pico is running MicroPython
• Copy lib/ folder to Rpi Pico root
• Copy main.py file to Rpi Pico root

Wi‑Fi + HTTP (Pico W)

• Copy secrets.py.example to secrets.py and fill in WIFI_SSID and WIFI_PASSWORD.
• With Wi‑Fi configured, the Pico W starts a tiny HTTP server on port 80.
• Visit http://<pico-ip>/ for a lightweight canvas graph of recent readings.
• Use the "Points" input to change history length (default 300, max 1200).
• API endpoints:
  • /data?points=N → JSON {t:[...], h:[...]} of last N samples.
  • /text → plain text status lines (same as serial output without memory line).