Imaging (sensors)
Discuss applications using ST FlightSense Time-of-Flight sensors, ST BrightSense CMOS image sensors, and ambiant light sensors (ALS) technology. Find answers to your questions on troubleshooting, data accuracy, optimizing communication and more.
Forum Posts
Resolved! VL53L0X AVDD voltage
Hi everyone,I was wondering if it is possible to supply my VL53L0X with a 3V3 voltage?According to the datasheet, the 3V3 respects the recommanded operating condition.But when I look for example board from ST or other vendors, there is always a conve...
VL531L1 measurements always FF.
I have rewritten the C app for the VL531 in LAIRD SmartBasic in order to drive the VL531 from a BT module (BL652). I communicate OK with the VL531 over I2C but when I sent the start command (and after I get a Data Ready from register 0x31 as shown be...
Resolved! Can we measure the frequency of the beam (VL53L0X) ?
Hello Guys,I hope you all are doing well.I am working on a project that with the VL53L0X ToF Sensor and ESP modules.The sensor works great and i am trying to get deeper into its reads because what i need.I am trying to build a frequency meter using t...
How sensitive are VL53L1X SPADs to other wavelengths photons ?
Hi,the laser works at 940nm. Do we know whether the SPADs are tuned to this wavelength, or whether they would also be able to detect photons at other wavelengths (double the original wavelength, for instance) ?Thanks a lot in advance
How to reliably determine (long touch) DETECT events with the STM8TL5x TouchSense / ProxSense state machine.
Hi. I'm working with the STM8TL52F4 MCU and its touch/proximity sensing peripheral. I made a simple touchkey sensor simulating Fig 3 AN4313 (ST App Note: Guidelines for designing touch sensing applications with projected sensors). If the sensor is to...
VL53L1X - Interrupt(s) happening immediately after startMeasurement is called
In my setup I have VL531LX proximity sesor connected as per datasheet. Every time when I call startMeasurement interrupt is risen immediately after (often two interrupts). By user manual UM2356, figure 3. this clearly should not happen. I was wonder...
Could not receive the true unswer from VL53L1
Gentlemen! Sorry for bothering you.I try to use VL53L1 with the Light Driver. The power level is 3.0 V, so I changed the Initialization data array, cell 0x2E from 0x00 to 0x01 and cell 0x2F from 0x00 to 0x01. I wait for the Device ready (SensorState ...
Problems calibrating VL53L0X ToF distance sensor (VL53L0X_perform_offset_calibration, VL53L0X_perform_xtalk_calibration). bug?
RoutineVL53L0X_perform_offset_calibration from src/core/src/vl53l0x_api_calibration.cpp is giving strange results. By my opinion the problem is in uint16_t sum_ranging which should be of type uint32_t due to later bit shifting (<<16), which needs to ...
How can we detect a target if it doesn't cover the FoV(i.e., a target smaller than the FoV)?
If it's not doable, what is the reason for that? (why the distance cannot be measured with the VL53L1X if a target is smaller than its FoV?)