开源万能的延时继电器模块设计（硬件+固件+设计说明等）

该延时继电器模块相比常用的继电器模块功能更全面、调节使用起来也更便捷。几乎可以应用于大多数专用应用设计中，如调整AC-DC负载大小等。

具体介绍如下：

硬件特色

1. Recommended load rating: 24 V DC/40 VAC, 5 A (10 A, normally-open, only).
2. Screw terminals for relay contacts.
3. DIP switches to set timing.
4. Power indicator and relay state indicator LEDs.
5. On-board 5 V regulator; runs from 7-15 V DC, or can be run from 5 V directly.
6. Screw terminals for trigger and input power. Location for optional DC power barrel jack.
7. Pre-programmed AVR Microcontroller (Atmel ATtiny2313A), with 6-pin programming header

Standard timing features:

1. Time delay can be set from 1 second to 31 hours.
2. Time delay is set by DIP switches; no need to guess and check timing with an adjustment dial.
3. Auxiliary cancel-trigger input, halts operation immediately.
4. Can be triggered by any low-going signal, or external button, switch, or coin acceptor.

Versatile operating modes:

1. Can be run as a one-shot or repeating (automatic cycling) timer.
2. Can be configured to cancel the trigger if a second trigger input is received.
3. Can be set to automatically trigger at power-on.

延时继电器实物展示：

所需材料清单截图：