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ALS Tire BLE Install Guide 

 

16 

© Alsense Motorsport SRL 

 

Configuration Characteristic Packet 

Field 

Size 
(bytes) 

Description 

Values  Default Values 

Protocol 
Version 

The current protocol version. 

Number of 
Channels 

The number of channels. 

1-3 

Sample Rate 

The sample rate in Hz. 

1-10 

10 
(when waiting for 
movement the value is 
always 1) 

Sensitivity 

The accelerometer sensitivity. 

10-20  12 

Emissivity 

The temperature infrared sensor 
emissivity(in .01 increments). 

1-100  75 

Sensor 
Position 

Position of the sensor. 
One of: 
1 - Front Left 
2 - Front Right 
3 - Rear Left 
4 - Rear Right 

1-4 

Unused 

11 

Reserved for future use. 

N/A 

N/A 

The length of this packet is 20 bytes. 
The device checks the configuration ranges and rejects the configuration change if the values are 
not in the ranges from the table from above. 
 

For more details visit our website. 

 

Summary of Contents for ALS Tire BLE

Page 1: ...Type here ALS Tire BLE Install Guide 18 06 2022 V1 0 Initial version www alsense eu...

Page 2: ...6 Operation Charging 10 7 Factory Reset 10 8 Configuration 10 9 Troubleshooting FAQ 12 10 Support 13 Appendix A ALS Tire BLE 14 Bluetooth Communication Protocol V2 0 Updated 23 01 2022 14 Overview 14...

Page 3: ...s aimed at providing an overview of the typical install process and configuration steps 2 Specifications SENSOR Number of Channels 3 3 default Sample Rate 1 10Hz 10Hz default FOV 110 Battery 250 mAh b...

Page 4: ...utomatically boots up the STATUS LED on the device should turn blue and after the initialization period passes it switches off This signals that the device is ready for transmitting data over BLE d Sl...

Page 5: ...a solution We do recommend placing the sensor on the tire s leading edge so as to not get hit by debris and avoiding direct exposure to significant heat sources i e exhausts The IR sensor has a horiz...

Page 6: ...ALS Tire BLE Install Guide 6 Alsense Motorsport SRL Maximum Tire Width mm Mounting Distance mm 100 35 150 52 225 79 250 88 275 96 300 105 350 123 400 140 Figure 2 Channel assignment sensor data order...

Page 7: ...ALS Tire BLE Install Guide 7 Alsense Motorsport SRL Figure 3 Visual Representation of channel assignments...

Page 8: ...GPS OBD Buddy iOS Android Connecting to the device 1 Download the latest version of the application 2 If you have GPS OBD Buddy buy the Tires view add on to be able to see the tire temperatures 3 Ope...

Page 9: ...ALS Tire BLE Install Guide 9 Alsense Motorsport SRL Configuring the device 1 Go to Administration 2 Go to Sensor List 3 Click on the Alsense sensor 4 Modify the configuration and click Set...

Page 10: ...to the ones in the charging dock Alternatively the sensors can be placed in their carrying case which has the magnets pre fitted Demo units need to be placed in the charging dock or magnetically deact...

Page 11: ...re temperature Suggested values depending on mounting distance 50mm 0 86 150mm 0 8 200 0 77 Accepted values 1 is 0 01 1 100 Sample Rate 10 Hz Sampling and reporting rate for the sensor Accepted Values...

Page 12: ...sensor near the receiver Try resetting it using the magnetic override c Turn Off and then On the mobile Bluetooth The BLE stack might be corrupted and this helps reset the stack d Turn Airplane mode...

Page 13: ...age as it provides the product s datasheet and configuration files for the most common CAN dashboards loggers Extra help can be obtained using our built in ticket support system or directly via phone...

Page 14: ...tooth Services and Characteristics The board exposes a BLE service for interacting with it called Temperature Service The Temperature Service has 2 characteristics Temperature Characteristic and Confi...

Page 15: ...annels x 2 bytes Examples for 3 channels we will have a payload of 3 x 2 6 bytes and a padding of 26 bytes which are not used for 2 channels we will have a payload of 2 x 2 4 bytes and a padding of 28...

Page 16: ...value is always 1 Sensitivity 2 The accelerometer sensitivity 10 20 12 Emissivity 2 The temperature infrared sensor emissivity in 01 increments 1 100 75 Sensor Position 1 Position of the sensor One of...

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