uC for Tire Temperature measurement

Hi Kyza

What's the functions do you want? Just like how many of UART or ADC or SPI or GPIOs do you need?

Is your project complex? What's the memory size will you needed?

How fast do you need to deal with your project? Does the 16MHz meet your application?

Best regards

Gary

Hi Gary,

Many thanks for the reply.

We need to finish the project immediately; we are already late by months.

The requirement is, we want to build a small circuit to be placed (moulded) within the Tire, in the Rim of the Tire.

The circuit needs to connect to the Sensors (Temperature and Orientation Sensors). Both these sensors are moulded in the Tire. Orientation (Movement) sensor placed in-between the Tire Threads and Temperature sensor is placed just above the Tire threads.

The data (Temperature and Movement) is recorded in the memory chip. Memory chip is either separate or built within the circuit.

If you need more clarity I’m reachable at faraz@masatechcorp.com.

Thank you,

Kyza

Hi Gary,

I suggest you go with TI CC2640R2F Bluetooth MCU's. You collect your sensor data periodically then send them through Bluetooth Connection to your smartphone.

There are existing TI CC2640R2F based products that does something similar, like Tire Pressure Monitoring System.

-kel

Is it (just) me or has (somehow) the 'plot here' thickened?    The opening post seeks an MCU able to mate well w/the, 'LM95172' (high performance) temperature sensor/IC.

Yet the latest post (just above) notes:

Kyza Amed said:

Sensors (Temperature and Orientation Sensors)

and then adds mention of a 'memory chip!'    Thus - your 'real' requirement is unclear.

Note too - that unless yours is an, 'Educational, Proof of Concept' (my suspicion) - that tire will be rotating - and you will require 'Transporting your Signal from your 'Tire resident MCU' to the vehicle's interior.'    (i.e. dashboard display)    My car captures & displays the air-pressure at all 4 wheels - you may have a similar requirement - and it is 'Non-Trivial' to 'manage, time & coordinate those 4 transmissions.    (So that each can be properly received.)    A 'SDR'  (Software Defined Radio) proves highly useful to diagnose & aid in such (likely) RF development.  

This may suggest that your (real) need is for an MCU equipped w/(some) RF capability - while able to interface successfully w/'Temperature, Orientation & Memory components.'

There is ZERO mention of any 'Performance Goals'  (i.e. Specifications) - thus the choice of an MCU (at this time) is beyond the bounds of  mere mortals...

As always - devil luxuriates in those (most always) 'missing details!'

BTW - English IS complex ... the multiple posts landing here form a 'forum THREAD.'   The grooved & regular pattern of the tire's 'road-contact' surface form the tire's TREAD!

Hi Kyza

Do you use is in the cars? Or  Do you need the auto level devices?

Hi David,

We will use it in Cars and Trucks.

Thank you,

Faraz

Hi Gary,

We will use it in Cars and Trucks.

Thank you,

Kyza

Hi Kyza

For the auto level  devices the msp430 just have msp430g2553-Q that will have SPI interface will communicate with LM95172 and other orientation sensors

Best regards

Gary

Hi,

Likewise if you prefer MCU with Bluetooth there is a Automotive Qualified Bluetooth MCU http://www.ti.com/product/CC2640R2F-Q1

But, If you put this Bluetooth MCU to be moulded to the tire, the rubber material might affect RF. If the antenna is external to the rubber material might work.

-kel