KERUI KR-M623 - User Manual

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Door Bell

KR-M623

一. Product Introduction

This power generation module utilizes the principle of electromagnetic induction power

generation. It generates a pulse current each time the pressing action, driving the transmitter to

work once, and cooperates with the independent running OOK emission IC with encoder,

without external MCU control, to achieve single chip, high-flexibility wireless communication.

Functionality, this transmitter replaces the traditional battery, eliminating the cost of late

replacement of the battery, energy saving and environmental protection.

二, the main indicators

1. Power generation module word power generation (press and rebound) >600uJ

2, action intensity: about 1650g

3, service life: >100,000 times

4, operating frequency: 433.92MHZ

5, the use of the environment: -20 °C ~ 40 °C

三, the operation instructions

The transmitter power generation module adopts full-bridge rectification. When it is pressed, it

stores energy. When it pops up, it drives the back-end circuit to work. The stroke is 2.6mm.

When you press it, you hear a “click” and it means press; release your finger and it will pop up.

"One click, indicating that a job has been completed and the transmitter has transmitted a

signal.

四, match with the doorbell host

Hold down the doorbell host [] key 5s, the host "drip" a sound, indicating that entering the

pairing state, trigger the transmitter, the host "drip" two, once again trigger the doorbell button,

the host "drip" indicates a successful match; by host Press any key to exit the learning state

五. Precautions

The minimum pressing pressure for normal operation of generator keys is about 1450g to

ensure the normal operation of the generator.

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This document describes the KR-M623 Door Bell, a power generation module designed for wireless communication.

Function Description

The KR-M623 Door Bell utilizes the principle of electromagnetic induction for power generation. Each time the device is pressed, it generates a pulse current that drives the transmitter to operate. This system incorporates an independent running OOK (On-Off Keying) emission IC with an encoder, eliminating the need for an external MCU control. This design enables single-chip, high-flexibility wireless communication. A key benefit of this technology is that it replaces traditional batteries, thereby eliminating the cost and inconvenience associated with battery replacement, promoting energy saving, and environmental protection.

The power generation module employs full-bridge rectification. When the device is pressed, it stores energy. Upon release, it drives the back-end circuit to function. The device is designed to provide a tactile and auditory feedback; when pressed, a "click" sound indicates that the press action has been completed and a signal has been transmitted.

Important Technical Specifications

The main indicators of the KR-M623 Door Bell are as follows:

Power Generation: The power generation module generates more than 600uJ of power per press and rebound cycle.
Action Intensity: The required action intensity for operation is approximately 1650g.
Service Life: The device is designed for a long operational life, exceeding 100,000 presses.
Operating Frequency: The device operates at a frequency of 433.92MHZ.
Operating Environment: The device is suitable for use in environments with temperatures ranging from -20 °C to 40 °C.
Stroke: The operational stroke of the device is 2.6mm.
Minimum Pressing Pressure: For normal operation of the generator keys, a minimum pressing pressure of about 1450g is required to ensure proper functionality.

Usage Features

The KR-M623 Door Bell is designed for ease of use and integration with a doorbell host.

Pressing Action: When the device is pressed, users will hear a "click" sound, which signifies that the press has been registered and the transmitter has sent a signal. Releasing the finger allows the device to pop back up, completing the cycle.
Pairing with Doorbell Host: To pair the KR-M623 with a doorbell host, follow these steps:
1. Hold down the doorbell host's designated key for 5 seconds.
2. The host will emit a single "drip" sound, indicating that it has entered the pairing state.
3. Trigger the transmitter (press the doorbell button).
4. The host will then emit two "drip" sounds, confirming a successful pairing.
5. Once again, trigger the doorbell button.
6. The host will emit a "drip" sound, indicating a successful match.
7. Press any key on the host to exit the learning state.

Maintenance Features

The device is designed to be maintenance-free due to its battery-less operation. The primary consideration for ensuring proper function is to adhere to the specified minimum pressing pressure.

Generator Key Operation: To ensure the normal operation of the generator, the minimum pressing pressure for the generator keys is approximately 1450g. This is a critical factor for consistent performance.

FCC Warning Statement

The device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

KERUI KR-M623 Specifications

General

Brand	KERUI
Model	KR-M623
Category	Accessories
Language	English