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Messages - yumi

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1
Electronic connection / about SD card
« on: May 20, 2022, 10:37:33 PM »
The SD card reader is a lightweight and compact base device. To connect successfully and begin using it, simply insert the SD card into the SD card reader in the correct direction. Some SD card readers require you to insert the SD card upside down. The device is then connected to another electronic terminal (such as a laptop) to view the files on the SD card.
https://www.apogeeweb.net/electron/what-is-an-sd-card-reader.html

2
Open Chat / a NAND Gate
« on: May 11, 2022, 11:16:12 PM »
Version of CMOS

The 4011 is a standard 4000 series CMOS IC with four independent, two-input NAND gates.

Figure: NAND Gate Diagram in a CMOS Type 4011 Integrated Circuit.

Availability

Most semiconductor companies, such as Fairchild Semiconductor, Philips, and Texas Instruments, sell these devices. These are typically available in both through-hole DIL and SOIC configurations. Most datasheet databases have datasheets readily available.

https://www.apogeeweb.net/electron/what-is-a-nand-gate.html

3
Open Chat / A Hardware
« on: May 03, 2022, 10:36:14 PM »
I have learned an article about THREE PRONG PLUG,you can go and have a look~

https://www.apogeeweb.net/electron/what-is-the-three-prong-plug.html

4
Questions and Answers / question of A Hardware
« on: March 26, 2022, 04:47:59 AM »
I have learned an article of IRFP260:https://www.apogeeweb.net/circuitry/irfp260-power-mosfet-datasheet.html

I would like to know HOW CAN I INSTALL THE IRFP260?

5
Hardware talk / Re: A Hardware
« on: February 17, 2022, 03:23:42 AM »
The HT16K33 is a multi-function LED controller driver with memory mapping. The device has a maximum display segment number of 128 patterns (16 segments and 8 commons) and a 13*3 (MAX.) matrix key scan circuit. The HT16K33's software configuration features make it suitable for a wide range of LED applications, including LED modules and display subsystems. The HT16K33 communicates with most microcontrollers via a two-line bidirectional I2C bus.

https://www.apogeeweb.net/circuitry/ht16k33-led-controller-driver-datasheet-pdf-arduino-applications-faq.html

6
Hardware talk / A Hardware
« on: January 08, 2022, 03:53:02 AM »
The AD8221-EP is a gain programmable, high performance instrumentation amplifier with the highest CMRR over frequency in its class. The CMRR of today's instrumentation amplifiers drops off at 200 Hz. The AD8221-EP, on the other hand, maintains a minimum CMRR of 80 dB to 10 kHz at G = 1. The AD8221-EP's high CMRR over frequency allows it to reject wideband interference and line harmonics, greatly simplifying filter requirements.

https://www.kynix.com/components/AD8221-Instrumentation-Amplifier-CAD-Models-Datasheet-PDF-Features.html

7
Microcontrollers / Remappable pin selection for PIC18F66J94
« on: November 28, 2016, 02:20:14 AM »
Hi all,
I am new to this series of controller but earlier i had worked with PIC24FJ256GB406.
In PIC24FJ256GB406 controller, any remappable pin can be configured for any type of peripheral feature for example we can map uart3RX on any of the remappable pin. There is no restriction to which remappable pin uart3rx has been connected. Based on this only i had designed my new design for PIC18F66J94 controller and got PCB fabricated also but i think i have done blunder in configuring the remappable pins.
For PIC18F66J94 controller, remappable pins have been grouped together and divided into different groups i.e. for using U3RX any one of these remappable pins can only be used i.e. RP0,RP4,RP8,RP12,RP16,RP20RP24,RP28,RP32,RP36,RP40 and RP44.
I didn't care for this grouping while designing the schematic.
Now i need to configure 3 uart lines through remappable pins as follows
RP3->RX,RP2->TX,RP1->RX,RP0->TX,RP18->TX,RP19->RX. I can't change the RX and TX lines on the slave device as they are non-remappable.
Out of these 3 i can configure only one set of uart line i.e. RP3 as U1RX and RP2 as U1TX. I want to know if there is any other possibility without changing the hardware connection?
Regards
yumi

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