Mira220 External Trigger Mode¶

Introduction¶

Slave Exposure Control Mode

In **Slave Exposure Control Mode**, two methods of operation are possible: **exposure and readout are controlled by two separate pins** or by a **single pin**.

Single Pin Control¶

In single pin exposure, a rising edge on the REQ_EXP pin triggers exposure, while a falling edge on the REQ_EXP pin triggers the readout.

Two Pins Control¶

When using two pins, a rising edge on the REQ_EXP pin triggers exposure, while a rising edge on the REQ_FRAME pin triggers the readout.

Single Pin Control Mode¶

Hardware Connection¶

Note

This example tutorial is based on NVIDIA Jetson Platform. In practice, you can use any embedded device that supports sending signals (such as Raspberry Pi).

Hardware Preparation

Hardware Preparation

Arducam EK036 - Mira220 Mono Camera Evaluation Kit (In this example the kit has been disassembled to show the details).
Embedded Platforms (this example uses NVIDIA Orin NX)
DuPont Cable

Hardware Connection

Camera Pin1	Camera Pin2
GND	REQ_EXP

Please connect the camera part and the trigger signal part correctly according to the hardware connection diagram.

Turn on the Camera¶

External Trigger Signal¶

trigger_demo:

Mira220 EVK External Trigger Mode Demo

-t: The frame rate of the external trigger. The default frame is 1 in this demo.

Python3 continue_trigger.py-t 1

Preview¶

Two Pins Control Mode¶