linux raspberrypi 4.9.56-v7+ #1044 smp fri oct 13 15:23:13 bst 2017 armv7l gnu/linux fmpeg version 3.2.5-1 when try use h264_omx encoder [h264_omx @ 0x4eb940] libomx_core.so not found [h264_omx @ 0x4eb940] libomxcore.so not found tried apt-file find 2 files don't seem part of package?! where/how should find them? in advance! after research learned omx layer in raspbian handled libomxil-bellagio library. fact ffmpeg apparently expecting different library suggest there's wrong raspbian ffmpeg package? anyway, recompiled ffmpeg myself , got h264_omx encoder work. raspberrypi
hi all, as working out scripts wich me make winddirection meter gy-87 calibrate compass sensor on board. i using script "hmc5883l_calibrate_mpu6050" korneliusz jarzebski. i fault "class mpu6050 has no member named begin" /* calibrate hmc5883l + mpu6050 (gy-86 / gy-87). output hmc5883l_calibrate_processing.pde read more: http://www.jarzebski.pl/arduino/czujniki-i-sensory/3-osiowy-magnetometr-hmc5883l.html git: https://github.com/jarzebski/arduino-hmc5883l web: http://www.jarzebski.pl (c) 2014 korneliusz jarzebski */ #include <wire.h> #include <hmc5883l.h> #include <mpu6050.h> hmc5883l compass; mpu6050 mpu; int minx = 0; int maxx = 0; int miny = 0; int maxy = 0; int offx = 0; int offy = 0; void setup() { serial.begin(9600); // initialize mpu6050 while(!mpu.begin(mpu6050_scale_2000dps, mpu6050_range_2g)) { delay(500); } how slove error? any apreciated. kind re...
hello, i need simple timer or stopwatch sketch. i have uno. i going use 2 photoelectric sensors , need basic simple sketch start timer when first 1 tripped , turn timer off when second 1 reached. displayed in seconds , minutes. i have reset button start over. read on digital readout, know how that. any appreciated. thanks, tony the same question asked in forum few days ago. is school assignment? check this link - may you'll find 1 of classmate... build code doing this: in plain english it's stage = waiting // start if detector1 goes above below threshold loop read both detectors , button. if button pressed set stage waiting else if detector 1 above threshold , stage waiting set stage starting if detector1 below threshold , stage starting then record start time , set sta...
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