diff --git a/content/hardware/02.hero/boards/uno-r4-wifi/tutorials/opamp-library-reference/giga-usb.md b/content/hardware/02.hero/boards/uno-r4-wifi/tutorials/opamp-library-reference/giga-usb.md new file mode 100644 index 0000000000..b90192ae64 --- /dev/null +++ b/content/hardware/02.hero/boards/uno-r4-wifi/tutorials/opamp-library-reference/giga-usb.md @@ -0,0 +1,83 @@ +--- +title: OPAMP Library API Documentation +description: 'Learn how to use the on-board OPAMP on the Arduino R4 boards.' +author: Pedro Sousa Lima +tags: [AMPOP, OPAMP] +--- + +## Overview + +The OPAMP library allows control over the on-board OP AMP encontered on Arduino R4 boards. +More information on implementation can be found [here](https://docs.arduino.cc/tutorials/uno-r4-wifi/opamp/). + +## Supported Boards + +- Arduino UNO R4 WiFi +- Arduino UNO R4 Minima + +## Functions + +### `bool begin(OpampSpeedMode)` + +Initializes the default op-amp channel. You can specify the speed mode as either high-speed or low-speed. If no speed mode is specified, the op-amp will default to high-speed mode. + +**Parameters** + + `speed` (optional): The speed mode of the op-amp. Options are: + - `OPAMP_SPEED_LOWSPEED` + - `OPAMP_SPEED_HIGHSPEED` (default) + +**Returns** + +- `true` if initialization was successful. +- `false` if initialization failed. + +### `bool isRunning(uint8_t channel)` +Checks whether a specific op-amp channel is currently running. + +**Parameters** +- `channel`: The channel number to check (0 to 3). + +**Returns** +- `true` if the channel is active. +- `false` if the channel is inactive. + +### `void end()` +Deactivates all op-amp channels. + +### `void end(uint8_t channel_mask)` +Deactivates specified op-amp channels. + +**Parameters** +- `channel_mask`: A bitmask specifying which channels to deactivate. + +## Example Usage +Here is an example demonstrating how to initialize and check the status of the op-amp: + +```cpp +#include + +void setup() { + Serial.begin(9600); + delay(2000); // serial monitor delay + + // Activate OPAMP on the default channel (channel 0) + // Plus: Analog A1 + // Minus: Analog A2 + // Output: Analog A3 + if (!OPAMP.begin(OPAMP_SPEED_HIGHSPEED)) { + Serial.println("Failed to start OPAMP!"); + } + + bool const isRunning = OPAMP.isRunning(0); + if (isRunning) { + Serial.println("OPAMP running on channel 0!"); + } else { + Serial.println("OPAMP channel 0 is not running!"); + } +} + +void loop() { + delay(1000); // do nothing +} +``` \ No newline at end of file pFad - Phonifier reborn

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