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Hello, I am running the Demo Application on the FRAM MSP-EXP430FR5739 experimenter's board. When I am in "Mode 3: accelerometer demo", acceleration data are supposed to be measured and written to the FRAM block. How can I have access to / where can I see the data written in the FRAM? And how can...
I am trying to figure out how to program the power delivered to an antenna connected to a CC2420 RF Transceiver (TinyOS 2.1).
In the "CC2420.h" file, I have programmed the RF output power as follows:
#ifndef CC2420_DEF_RFPOWER
#define CC2420_DEF_RFPOWER 31
#endif
According to the literature...
I have a Bluetooth transmitting device and my PC (Windows 7) is connected to it and configured as if it was connected through a RS232 serial port (COM4). How can I capture the raw data transmitted by the Bluetooth device, or, equivalently, the raw data received in COM4?
Thanks! So, I will just connect a 10K resistor between the ADC and the ground.. Should I do something similar when I try to measure the voltage of the battery? (i.e. ADC4 - battery - 10K - ground)?
It is an MSP430F1611.. Since I am all new to microcontrollers, how should I use the pull down resisotr? And would it be the same if I used a regular 10K resistor?
No, all I have done is to measure the voltages on the pins. I was expecting ADC4 to read 0V, however the voltmeter does not indicate any value, meaning that it is not dc, but rather a fluctuating waveform.. I was wondering why this is happening.
I wish to measure the voltage of a 1.5V battery using a microcontroller (supply voltage of 3V).
I thought of connecting the battery on the ADC4 output of the microcontroller, and wrote a program which reads the ADC4.
Initially, I programmed the microcontroller without connecting the battery to...
No, I am using just a TI MSP430F149 microcontroller. According to the datasheet, the MSP430 uses a 12-bit ADC module and contains two selectable voltage references (1.5V and 2.5V). Should I take anything else into account given that the supply voltage is 3V?
Since it is hard enough to change the electronics circuit, is there a way to find out the actual Vref+ and Vref- voltages in my case? i.e.
- voltage reference set to 2.5 V (sref:REFERENCE_VREFplus_AVss, ref2_5v: REFVOLT_LEVEL_2_5),
- power supply of 3V (in the case of the battery board), and
-...
So it seems that I cannot be sure about the actual value of my Vref+ and Vref- voltages?
What can I do to find their actual values? I am not very familiar with microcontrollers..
Hello,
I have a temperature sensor connected to a 12-bit microcontroller, with the reference voltage being set to 2.5V (sref:REFERENCE_VREFplus_AVss, ref2_5v: REFVOLT_LEVEL_2_5).
When the sensor and microcontroller are fed through a battery board (3.7V battery with 3V regulator), then the ADC...
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