Hardware & Devices

Start with the simplest configuration that "works". By your own words, you are starting out with at least 3 devices of unknown condition; you have no "baseline" to compare to in terms of success (which usually means at least "2" configurations: one that you can revert to when things stop working; and the other being the "work in progress"). "(I) am amazed to see myself here rather than there ... now rather than then". ― Blaise Pascal

To control the volume you should lower the input of the amplifier. This is usually provided by the audio source but can be also achieved by using potentiometers (analog or digital controlled). But you can control the Raspberry Pi output volume with the amixer command line utility and the alsamixer graphical utility. See for example Sound configuration on Raspberry Pi with ALSA[^] and amixer(1): mixer for ALSA soundcard driver - Linux man page[^].

You part number is not full , as you can see , there are many ending letters after PIC18F87K22 as below : [^] So you may check the exact part number , then we will know how to solve this problem . BR

You may find the answer here : NE555N - Fairchild Semiconductor - Integrated Circuits (ICs) - IN STOCK - Hotenda.com[^] [^]

I have not used that so far but will try to answer. Quote: I’d like to program the attiny in straight assembly, with an ISP programmer. Is this possible, or do I have to use the Arduino IDE/Arduino programming language? Are there any resources for this type of thing? I don't know if the Arduino IDE supports assembly language for the ATtiny85. But you can use Atmel Studio 7 | Microchip Technology Inc.[^] (the Atmel IDE). Maki Young wrote: On the Atmel website it lists the attiny85 as having a 512 byte EEPROM and a 4kb main memory. When I program the attiny85 am I programming the EEPROM directly or is there some type of boot loader/firmware already there that will load programs off the memory? Is it possible to write my own boot loaders? According to the data sheet the EEPROM can be written by a programmer. But the code resides in the main (flash) memory. The EEPROM is for storing data like serial numbers, calibration data, and configuration data. When using assembly language there is no boot loader. You have to write all the code and program it to the the flash memory. You may however write some kind of boot loader yourself. Such boot loaders are common to check for specific conditions on IO pins upon power on and enter a special mode (e.g. for code updates: The loader accepts commands on an interface and might program received data to flash and/or EEPROM). Then the normal code can be updated (which is executed when not in the special mode) but updating the boot loader itself would still require a programmer. Maki Young wrote: Do I need an external crystal, or will the internal crystal be fine for what I intend to do? If I do need an external crystal, how do I go about wiring that up? Just use the internal oscillator. An external crystal is only usefull with special requirements like frequencies not supported by the internal oscillator or a high stability clock. Maki Young wrote: How would I go about powering the attiny? By applying a voltage to the power pins (VCC and GND; 2.7 to 5.5 V / >= 1.8 V for the V type). Maki Young wrote: Also, an

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What kind of answer do you expect? You are mainly setting configuration registers which can't be improved. The only code portion that can be improved is the loop in your int_clk() function. The final clearing of the OFIFG bits can be omitted because those are already cleared when the loop terminates. The inner for loop seems to be unnecessary when _NOP() does what it indicates (just do nothing while the processor runs) and there is no requirement for a delay between consecutive writes to the IFG1 register. Then that function can be: void int_clk() { BCSCTL1&=~XT2OFF; //open XT oscillator BCSCTL2|=SELM1+SELS;//MCLK 8M and SMCLK 1M do { IFG1 &= ~OFIFG; //clean the wrong sign of vibration } while ((IFG1 & OFIFG) != 0); //If sign is 1,continue to wait }

You'd do a lot better getting an answer from the supplier than from a random bunch of coders here. Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012

LovesCSharp wrote: Do you think 32 GB is overkill like our Hardware management is saying as push back? Yes. It is unlikely that your Visual Studio project will utilize this much RAM. I have only encountered a few projects that utilize this much RAM... all of them were C++ solutions with 20+ projects/libs and the RAM was used only during the linking stage. I would recommend Build 1 with only 16GB of RAM. More cores means faster compiling... and with SSD drives you get faster machine code generation on disk. For running Virtual Machines... Build 1 is also vastly superior due to the large 20MB cpu cache versus the 8MB cache on the consumer processor. They could save over $500 by avoiding the Intel I7 6900K and going for a lower-end Xeon 8 core processor with 20MB cache. There are dozens of them for under $500. Best Wishes, -David Delaune

That even helped me a lot Thank you johnathan perry

Are you building your own "controller"? If not, the manufacturer / vendor will dictate what "language" / protocol the controller supports (e.g. MODBUS). Then there's typically a "driver"; that is written in the "host" operating system's language (e.g. C; C++; Assembler). Then there's the "application" that communicates with the "driver"; using just about any language that is compatible with the driver. I would first familiarize myself with what is available / doable before "building from scratch". [Arduino - Home](https://www.arduino.cc/) "(I) am amazed to see myself here rather than there ... now rather than then". ― Blaise Pascal

hi broo can check the meaning of secodary storage device here What is a Secondary Storage Device? - Definition from Techopedia[^]

You already have that URL so go there and take a look around. Alternatively, contact HP support.