Hands-on project
ESP32 voltage measurement
Choose a voltage divider, record ADC samples, and fit a calibration curve.
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All tools →Resistor calculator
Series, parallel and voltage dividers.
Open toolNumber base converter
Convert between HEX, DEC, BIN and OCT.
Open toolFind an equation from data
Enter an X–Y table, fit or interpolate a curve, and view the plot.
Open toolEncrypt and decrypt
AES-GCM and ChaCha20-Poly1305 in your browser.
Open toolESP and Arduino firmware flasher
Flash .bin files to ESP32/ESP8266 and .hex files to Arduino Uno R3/Nano over USB.
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