CIRCUIT DESIGN MU-1 Kullanım Kılavuzu - Sayfa 13
USB Arayüzleri CIRCUIT DESIGN MU-1 için çevrimiçi göz atın veya pdf Kullanım Kılavuzu indirin. CIRCUIT DESIGN MU-1 17 sayfaları. Embedded low power radio modem mu-1/mu-1 usb interface kit
Sayfayı YazdırChapter 4 How to Design a User System
When embedding the MU1-USB (MU-1 + MU1-USBIF) in a user system, pay due attention to the design of the
board and case.
4.1 Embedding the Product
This board is connected to a PC provided with a USB port. Connect the unit to the PC with the dedicated USB cable
provided. Power for the product is supplied from the PC through the USB cable.
If you house the product in a case, determine the position of the ground and antenna through a variety of tests.
In addition, if you attach LEDs to the case, connect them with inch-pitch through holes with reference to the diagram
below.
If you use a USB cable other than the one provided, use a double shield cable (USB 2.0 High Speed). The
consumption current of the product is about 63 mA. When using USB, pay attention to the total current capacity of
the other equipment since it can result in malfunctions. When marketing products that use this product, provide
information about the current in your operation guide.
4.1.1 Controlling the MU1-USB with a PC
MU1-USB
*1
*1
OG_MU1-UIK_v20e
Antenna *2
MU-1
USB-B receptacle
User PC
Power LED
*1
Inch pitch through holes only
If necessary, mount an 8-pin
Tx LED
socket, and attach external LEDs
etc.
Rx LED
*1
*1: Solder the terminal lug etc. and connect it to the user case
ground.
Determine the connection point with various tests.
*2: If the antenna is bent to fit inside, the communication
range falls and communication errors become frequent.
Do not put the antenna inside a metal case.
12
OPERATION GUIDE
100 pF
1
GND
2
3
+3v
4
100 pF
5
+3v
6
100 pF
RSSI
7
｝
To the
processing circuit
GND
8
Connecting external LEDs
・ To prevent noise, attach a ceramic
capacitor of about 100 pF to the LED.
・In terminals 1, 3, and 5 there are 1 ｋΩ
resistors.
Circuit Design, Inc.