3D Hall (Magnetic sensor) Forum Discussions
Hi,
I shall use TLE493D-P2B6 for the rotary position application. Sensor drift tolerance is too high for my application which is mentioned in the sensor datasheet.
How can I reduce this tolerance?
Best regards.
Show LessHello All,
We are using TLV493D for detecting the tampering of E-Meter. Our SoC runs Linux, so we are looking for linux device driver for TLV 493D. First search in google didn't show any available device drivers in Linux kernel. Please guide me if there are any already available or compatible drivers available.
Best Regards,
Abhishek
Show LessEnvironment description:
- STM32G0B1RET6 (64MHz bus) I2C1, 400kHz fast mode, configured for DMA communication, calls and configuration functions are all HAL libraries
- There are 3 TLV493D-A2BW sensors on the I2C1 bus. The 3 PMOS controls the VDD and 3.3 V connections respectively (the PMOS switch test is valid)
- The I2C1 bus SCL and SDA have 1.2kΩ pull-up resistors. The pull-up 3.3V is always present, and SCL and SDA do not have matching resistors to connect to the terminals
- The INT pins of the three TLV493D-A2BW sensors are each connected to the MCU's IO (input mode)
The hardware connection has been checked and there are no problems
Problem:
At the time of testing, the initial state was only one of the PMOS enabled to power up a TLV493D-A2BW. It felt like there was no response to ACK. After sending a written command for the first time, it returned HAL_BUSY
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Hi,
I am working on a tolerance estimation and I am using the TLE493D-W2B6 Hall-Effect Sensors.
For this purpose, I want to estimate the sensitivity error, offset and noise as a distribution function and therefore I have some questions about the information in the datasheet. I am using the short range mode.
Is it necessary to use a uniform distribution for the sensitivity (11-21 LSB12/mT) or is there a known standard deviation or another useful deviation for the sensitivity error? I am also a bit confused, why the differences in Magnetic linear range are smaller than the differences in sensitivity, relatively speaking.
Can the typical offset (±0.2mT) be understood as a standard deviation or how min, typ and max are definded here? And why is the Z axis different from the other axes in maximum offset but not in typical offset?
Finally, I would like to know if the maximum noise of 0.5 mT is the maximum standard deviation (rms=1 sigma) or the absolute maximum value.
Thanks,
Andre
Show LessHello,
Discovering TLI493D-W2BW sensor with python and raspberry.
I managed to establish i2c communication and found the code.zip example,
But I'm having real troubles to read the temperature :
- the value seems awfully false,
- the value doesn't change with temperature changes.
In the file code.zip,
I tried to get the temperature with :
def update_data(self):
global data
(count, data) = self.pi.i2c_read_device(self.h, 6)
def get_temp (self)
self.temp = (data[3] << 4) or (data [5] >> 4)
Does anybody see a mistake here ?
Show LessHello,
Can you share the PCB files for the S2GO_3D_TLI493DW2BW-A0 evaluation kit? In the design resources section for the sensor, I was able to find symbols/footprints for the chip itself, but I am seeking the PCB files for the board (ideally in Altium).
Ultimately, I'm looking to get the board outline and then the respective location of the TLx493 sensor on the board such that we can use it to mock up a prototype.
Thanks.
Show LessHello,
I am aware that these parts are obsolete but need to know what the N in the PN means and if these parts are both technically compatible (same fit, form and function).
TLE4957C2NE6747HAMA1 SP000745378
TLE4957C2E6747HAMA1 SP000745374
Many thanks,
Katie
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Please provide datasheet for this PN: TLV493DB1B6HTSA1 and comment on any difference from PN: TLV493D-A1B6 ?
What is meaning of B1 vs A1 ?
Many thanks,
Katie
Show LessHello. The issue I inquired about last time has been successfully resolved, thanks to your previous advice.
I have one more question I'd like to ask. / (using sensors: TLE493D-W2B6 A0, A1)
When a magnet is placed near the sensor, the values are consistently received. However, when the magnet is not near the sensor, I believe values close to 0 should be measured.
But, values close to 0x00 and 0xff irregularly appear when the magnet is not near the sensor.
I don't understand why 0xff values are coming in. Is there a reason for such extreme differences in values to periodically occur when there is no magnetic presence near the sensor?
Or are there certain initial settings that need to be done to prevent this? Currently, I believe I can handle this through exception handling, but I'm curious, so I wanted to ask.
TLE493D-W2B6 A0 TLE493D-W2B6 A1
Show LessI am using the Arduino IDE's Cartesiar sample program, but it cannot effectively detect the position. I don't know where the setting is wrong. The execution result is as follows:
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