![]() ![]() Lux_init_status = lightMeter. Wire.begin() // Initialize the I2C bus (BH1750 library doesn't do this automatically) On next cycle - repeat.Īs i understand maximum battery saving code will look like: Soto save battery we sleep max time - which, according to library is 180ms. We can sleep but we can't get exact measurement time for current settings. Then we have to wait, but measurementReady() relies on _delay_ms, which (as i remember) won't tick during sleep so you can't sleep. Now look it should work next way: after previous measurement done you must run nfigure(ONE_TIME_) so it starts measuring - this is shown in their example BH1750onetime.ino. I will try a PR to slightly improve that behaviour, but looks like library is becoming abandoned. Because this library uses the Spi library Ive downloaded it and started working with it. I've investigated previosly mentioned PR - and must admit that later they removed that re-initialisation when reading. system June 13, 2010, 2:49pm 1 Hello, Lately Ive started using the Spi library from the Arduino Playground to communicate between two arduinos using two nRF24L01+ transceiver modules. In many datasheet of SPI devices, the SPI modes are often shown as a combination of SCLK Clock Polarity (CPOL) and SCLK Phase (CPHA). I was updating my code, while library was updated and found that i had funtion, that does not exists in library - i've added it in local copy in library, then it updated and my local patch was gone. In the Arduino library, ther are 4 pre-defined constants that represents the 4 SPI modes, it is defined as SPIMODE0, SPIMODE2, and SPIMODE3. So far I have worked on more than 600 projects. This isn't TOO bad a solution, because most people using the Arduino IDE are just going to copy-paste your example(s) to use as a boilerplate anyway.Thank you for pointing the problem. Arduino Libraries Download and Projects they are used in In this article, I am going to share with you Top Arduino, Nodemcu ESP8266, and ESP32 libraries and their download links along with the projects links they are used in. The typical way to do it is, to include the depended library from within the example sketches you provide with the library themselves, ie, at the same place you include your library itself. ![]() ![]() From memory (and I might be misremembering), I don't think you can actually include one library (SPI in this case) from inside another library's library code, I don't think the IDE looks deep enough to include the depended upon library in the temporary source code tree for compilation. In the IDE's "preferences.txt" file (if you open the Preferences dialog in the IDE it tells you where this is) there is an option "build.path" (this is not exposed in the GUI, you have to edit the file), set this to some specific path, reload the IDE, then compile your sketch, once done (regardless if successful or not) you can have a look at what the IDE slapped together and actually tried to compile in your specified path. As a result, what you think (as a C programmer) should work, may or may not do what you think it should be doing when the Arduino IDE has done with it. The Arduino IDE messes about with includes, effectively, it pre-processes your code before compiling, and inserts various stuff, creating a source code tree in a (usually temporary) folder which it then compiles, the libraries which the IDE chooses to put into the source code tree depend on what it detects is being used (by way of includes), it's all pretty brittle if you ask me, but anyway. ![]() Code: #include "flashMemory.h" #if defined(_AVR_) #include "hardware/avr/HW_AVR.h" #elif defined(_arm_) #include "hardware/arm/HW_ARM.h" #endif flashMemory::flashMemory(uint8_t CE) ![]()
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