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As of 2025-07-24

TWELITE CUE (BLUE / RED) Datasheet

Latest

TWELITE CUE is a package that integrates the TWELITE wireless microcontroller, a 3-axis accelerometer, magnetic sensor, coin cell battery holder, and antenna. A dedicated CUE application (firmware) is pre-installed, and it starts operating immediately upon inserting a coin cell battery (CR2032). Its low power consumption allows continuous operation for years.

It is ideal for users who have ideas for utilizing wireless tags but lack hardware or software expertise, or have limited development resources.

TWELITE CUE is a compact wireless tag with long battery life and excellent transmission range.

Specifications

Product Code

The model numbers for TWELITE CUE are as follows.

Common Name	Product Code	Remarks
TWELITE CUE (BLUE)	MW-B-CUE-0	Standard Output
TWELITE CUE (RED)	MW-R-CUE-0	High Output

Product codes are subject to change. Please refer to our website for the most up-to-date information.

Wireless / Microcontroller Section

For specifications of the wireless and microcontroller section, refer to the TWELITE datasheet.

TWELITE CUE includes the following TWELITE modules:

Model Number	Embedded TWELITE
MW-B-CUE-0	TWE-L-WX
MW-R-CUE-0	MW-R-WX

Antenna

A reverse-F type antenna is used.

Item	Specification
Antenna Type	MW-A-P1934 (datasheet)
Gain (typical, omni)	`-1.4[dBi]` (without case) / `-2.5[dBi]` (with case)
Polarization	Linear Polarization

Vertical Directionality

Horizontal Directionality

Certifications

	MW-B-CUE-0	MW-R-CUE-0
Certification Type	TWE-001 Lite	TWELITE RED
Radio Law Approval No.	007-AB0031	007-AF0062
FCC ID	2AINN-L1	-
IC ID	21544-L1	-
Remarks	RoHS Compliant	RoHS Compliant

Only MW-B-CUE-0 is certified for overseas use.

Depending on the country, FCC ID or IC ID marking may be required on the TWELITE or product. If applicable, please contact us.

Built-in Sensors

Accelerometer: mCube MC3630
Magnetic Sensor:
- Initial Version: Texas Instruments DRV5032FD
- From September 2022: Diodes Incorporated AH1390-HK4-7
Watchdog Timer: Texas Instruments TPL5010
LED: Rohm SML-D12D8WT86

Sensors may be changed without notice.

For details on each sensor, refer to the respective datasheets.

Parts Description

Appearance may vary by lot. The figure above shows the initial lot.

1. TWELITE

Main wireless microcontroller module

2. LED

Acts as an indicator lamp for status

3. 7P Interface

7P Interface used for app configuration and writing

This is the connector for TWELITE R2/R3. Please pay attention to the orientation when connecting. Connecting in reverse may cause damage.

Below is the correspondence table for signal pins.

Name	Signal	TWELITE DIP	TWELITE (SMD)	Description
GND	GND	1, 14	20, 28, 30, 31, 32	Negative terminal of power supply
TXD	DIO6	10	8	Serial line (connect to RX on PC side)
PRG	SPIMISO	7	2	Connect to GND to reset; open or connect to VCC to enter programming mode
RXD	DIO7	3	9	Serial line (connect to TX on PC side)
RST	RESETN	21	21	Connect to GND to reset
VCC	VCC	28	5	Positive terminal of power supply
SET	-	-	-	Extended control signal

4. Accelerometer

Accelerometer for detecting XYZ acceleration

5. I2C Expansion Connector (initial lot only)

I2C Expansion Connector (initial lot only)

6. Magnetic sensor

Magnetic sensor for proximity detection of magnets (not a geomagnetic sensor)

7. Battery holder

Battery holder for CR2032

8. PCB Antenna

PCB Antenna constructed from circuit pattern on the board

Mechanical Drawings

Main Unit

PDF

Case

PDF

Circuit Diagram

PDF

Characteristics

This section includes specific characteristics of TWELITE CUE and values quoted from component datasheets. For items not listed here, refer to the respective component datasheets.

Values are based on semiconductor datasheets.

TWELITE

For details, refer to the TWELITE datasheet.

Absolute Maximum Ratings

	Min	Max
Power Supply (VCC)	-0.3	3.6	V
Analog IO (VREF/ADC)	-0.3	VCC+0.3	V
Digital IO	-0.3	VCC+0.3	V

Recommended Operating Conditions

	Condition	Min	Typ	Max
Supply Voltage		2.0	3.0	3.6	V
Start-up Voltage		2.05			V
Operating Temperature	No condensation	-20		75	°C
Operating Humidity	No condensation			85	%RH

Current Consumption

	Condition	Typ
Sleep (RAM OFF, no timer)		0.1	uA
Sleep (RAM ON, with timer)		1.5	uA
Tx (CPU doze)	MW-B-CUE-0	15.3	mA
	MW-R-CUE-0	23.3	mA
Rx (CPU doze)	MW-B-CUE-0	17.0	mA
	MW-R-CUE-0	14.0	mA

I/O Characteristics

	Condition	Min	Typ	Max
DIO Internal Pull-up		40	50	60	kΩ
DIO High Input		VCCx0.7		VCC	V
DIO Low Input		-0.3		VCCx0.27	V
DIO Input Hysteresis		200	310	400	mV
DIO High Output		VCCx0.8		VCC	V
DIO Low Output		0		0.4	V
DIO Sink/Source Current	VCC 2.7~3.6V		4		mA
	VCC 2.2~2.7V		3		mA
	VCC 2.0~2.2V		2.5		mA

Accelerometer

For details, refer to the MC3630 product page.

	Condition	Min	Typ	Max
Current Consumption	Sleep, Vcc=1.8V		0.1		uA
	Ultra-Low Power, 25Hz, Vcc=1.8V		0.9		uA
	Ultra-Low Power, 100Hz, Vcc=1.8V		2.8		uA
Measurement Range		-16		16	G
Resolution			12		bit
Sampling Frequency				1300	Hz

Although the sensor’s maximum sampling frequency is 1300Hz, due to wireless throughput limitations, the default firmware supports only 25/50/100/190Hz. For details, see here.

Magnetic Sensor

Initial Version

For details, refer to the DRV5032FD product page.

	Condition	Min	Typ	Max
Current Consumption	VCC=3V		1.6	3.5	uA
Sampling Frequency			20		Hz
Magnetic Threshold	Approaching	±1.5	±3	±4.8	mT
	Releasing	±0.5	±1.5	±3	mT

Units Shipped After September 2022

For details, refer to the AH1390-HK4-7 product page.

	Condition	Min	Typ	Max
Current Consumption	VCC=3.6V		2.2	13	uA
Sampling Interval		30	45	80	ms
Magnetic Threshold	When S-pole approaches	6	17	25	Gauss
	When N-pole approaches	-25	-17	-6	Gauss
	When S-pole is removed	2	11	20	Gauss
	When N-pole is removed	-20	-11	-2	Gauss

Watchdog Timer

For details, refer to the TPL5010 product page.

	Condition	Min	Typ	Max
Current Consumption			35	50	nA
Pulse Interval		60	90	120	s

LED

For details, refer to the SML-D12D8WT86 product page.

	Condition	Min	Typ	Max
Emission Wavelength	VCC=2.2V	602	605	608	nm
Luminous Intensity	VCC=2.2V	40	100		mcd
Limiting Resistor			470		Ω

Precautions

Inserting the Coin Cell

Insert the CR2032 battery with the + side facing the + mark on the battery holder. The TWELITE CUE LED will blink three times if inserted correctly.

Ensure correct battery orientation. Inserting it backwards may cause overheating and damage.

Due to its structure, the battery holder of TWELITE CUE is prone to detachment at the soldered area. Please follow the precautions below:

When removing the coin cell, it is recommended to gently press the battery holder from above to avoid stressing the soldered section.
When operating TWELITE CUE, use a dedicated case to hold down the battery holder from above.

Disposal

Dispose of this device in accordance with your local municipality’s ordinances and regulations. Please consult your local authorities for details.

General Notes

When using our products, be sure to evaluate and verify them under the actual conditions of your intended use.

For applications requiring high reliability or involving human safety, please contact your distributor in advance.

Revision History

Version	Date	Description
1.2.1	2024/5/7	Added Parts Description
1.2.0	2024/2/27	Added information about current magnetic sensor
1.1.1	2024/2/27	Migrated to new website, minor edits
1.1.0	2020/12/10	Added information on antenna directionality
1.0.0	2020/12/3	Initial version