![]() ![]() I2Cregs.jpg : Reading the dual UART at I2C address 0x10h, 2 UARTs enabled (reg 0, 0xB3h), reading page 1 (reg 3, 0x01), baud rate 0x05Fh (9600) at reg 0x04~0x06. Although a Raspberry PI/Arduino-like solution might work, the USB-HID interface and its HID device descriptors might be too high of a bar/maintenance for self deployed solutions.Ī cheap (USB-HID->I2C->UART->MP3->Speaker will guide us to the holy grail of the BEEP(1400,0.08) command! Hope this will inspire you!īme680_conf.jpg, bme680.jpg : Reading BME680 Chip id, status, temperature (21 C), pressure (993 mbar), humidity (49%) and gas resistance (20k). ![]() To implement an HP Prime USB-HID connection, the goal was to have no other major software development other than on the HP Prime. So the retrieved data can be used within the mighty Prime math machine. These commands are used to communicate over an USB connection using the USB-HID protocol.īesides communicating to sensors, analogdigital (A/D, D/A) and General Purpose Input/Output (GPIO), there are also many serial interfaces to, for example, test equipment, EEPROM readers/writers, and radio/GPS interfaces. With the latest HP Prime public release (2021 12 02 (14603)) the HP Prime now has another stable trick: the USBOpen(), USBSend() and USBRecv() commands. ![]()
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