2014年10月17日星期五

Mega2560-CORE mini 2560

Introduce
Mega2560-CORE is a small, complete and breadboard-friendly board base on the ATMega2560. Its design is based on the Arduino Mega2560so we can use it as a Arduino Mega2560 development board. In a different place, it lacks only a 6-foot download port and a reset switch. Reducing the hardware circuit that can we reduce the power consumption and the cost. Mega2560-CORE has a matching download line and the other one end of the download cable is a USB interface, so it is very convenient for use.

Features
Ø  Microcontroller ATmega2560
Ø  Operating Voltage (logic level) 3.3V or 5 V
Ø  Digital I/O Pins 54 (of which 15 provide PWM output)
Ø  Analog Input Pins 16
Ø  DC Current per I/O Pin 40 mA
Ø  Flash Memory 256KB
Ø  SRAM 8 KB
Ø  EEPROM 4KB (ATmega2560)
Ø  Clock Speed 16 MHz
Ø  Low power consumption, low cost



2014年10月14日星期二

BUONO USB2SERIAL USB2Serial Light USB to UART BUONO UNO LITE R3 for arduino

■ INTRODUCTION
BUONO UNO can be used to many applications, but not all application need USB communication, so we release the BUONO UNO LITE R3, it’s based on BUONO UNO R3 and canceled the USB to UART part, the UNO LITE have a 6Pin connector which can be connected to USB serial light adaptor for uploading firmware and communication, This will help user to reduce cost in the application.

 ■ FEATURES
Inherits all of BUONO UNO R3 features
Compatible to Arduino UNO/Duemilanove’s pin layout, screw hole and dimensions
3.3V or 5V operating voltage selectable
More visible location of indicator LEDs
Evolved with SMD components
Digital I/O pins 14 (of which 6 provied PWM output)
Flash memory 32KB or which 0.5KB used by bootloader
SRAM 2KB
EEPROM 1KB
Clock speed 16MHz
Micro USB connection make the cable can be mixed use with most digital products such as cell phone
5V DC/DC provide 95% efficiency
6V to 23V width rang input
Provide max 1.8A for peripheral circuits
LC Low pass filter for AVCC make ADC much stable
Ground terminal make measurement easier

 ■ FEATURES

Arduino UNO R3
BUONO UNO(LITE) R3
USB Connector
Type B Female
Micro USB connector
Operating Voltage
5V
3.3V or 5V selectable
3.3V Current
50mA
300mA
5V Current
500mA
2A
Input Range
7V to 12V
6V to 23V
MCU
Atmega168 or Atmega328
Atmega328 TQFP-32
Others

Ground terminal
LPF for AVCC
LITE version available




■ INTRODUCTION

BUONO USB2SERIAL fully compatible with Arduino USB2Serial Light, but more compact, It’s can be working with all Arduino main processor.

 FEATURES
        
l  Status lights include Power / RXD / TXD activity
l  Easy to connect to the Arduino Ethernet / Mini / Mini Pro / LilyPad Simple / Fio , and all BUONO LITE serials
l  USB cable directly solder to the PCBA , so it’s more stable
l  Pin to Pin compatible with Arduiono USB2Serial Light
l  Modify female connector to male, most female header will be poor connection after many times

2014年10月13日星期一

Mega2560-CORE mini 2560 3.3V 5V BUONO USB2SERIAL USB to UART Cable Arduino new

Introduce
Mega2560-CORE is a small, complete and breadboard-friendly board base on the ATMega2560. Its design is based on the Arduino Mega2560so we can use it as a Arduino Mega2560 development board. In a different place, it lacks only a 6-foot download port and a reset switch. Reducing the hardware circuit that can we reduce the power consumption and the cost. Mega2560-CORE has a matching download line and the other one end of the download cable is a USB interface, so it is very convenient for use.

Features
Ø  Microcontroller ATmega2560
Ø  Operating Voltage (logic level) 3.3V or 5 V
Ø  Digital I/O Pins 54 (of which 15 provide PWM output)
Ø  Analog Input Pins 16
Ø  DC Current per I/O Pin 40 mA
Ø  Flash Memory 256KB
Ø  SRAM 8 KB
Ø  EEPROM 4KB (ATmega2560)
Ø  Clock Speed 16 MHz
Ø  Low power consumption, low cost


2014年8月22日星期五

Mega2560-CORE

Introduce
Mega2560-CORE is a small, complete and breadboard-friendly board base on the ATMega2560. Its design is based on the Arduino Mega2560so we can use it as a Arduino Mega2560 development board. In a different place, it lacks only a 6-foot download port and a reset switch. Reducing the hardware circuit that can we reduce the power consumption and the cost. Mega2560-CORE has a matching download line and the other one end of the download cable is a USB interface, so it is very convenient for use.

Features
Ø  Microcontroller ATmega2560
Ø  Operating Voltage (logic level) 3.3V or 5 V
Ø  Digital I/O Pins 54 (of which 15 provide PWM output)
Ø  Analog Input Pins 16
Ø  DC Current per I/O Pin 40 mA
Ø  Flash Memory 256KB
Ø  SRAM 8 KB
Ø  EEPROM 4KB (ATmega2560)
Ø  Clock Speed 16 MHz
Ø  Low power consumption, low cost




2014年8月21日星期四

CS-4173 high-side current module

Introduce

The CS-4173 is a Low-Cost, Compact Current-Sense module. It is detected by collecting the high-side current to achieve
the load current, the main chip is MAX4173 high-side current-sense amplifier. The MAX4173 high-side current-sense
amplifier features a 0 to +28V input common-mode range that is independent of supply voltage. This feature allows the
monitoring of current out of a battery in deep discharge and also enables high-side current sensing at voltages greater
than the supply voltage (VCC). High-side current monitoring is especially useful in battery-powered systems, since it
does not interfere with the ground path of the battery charger. For the module, Derivation of calculation function is:
Vout = Vsense * 50, I = Vsense/Rsense, so the end result is I = Vout/(50*Rsense) = Vout/5, the unit is A.

Features

Low-Cost, Compact Current-Sense Solution
Wide 0 to +28V Common-Mode Range (Independent of Supply Voltage)
+3V to +28V Operating Supply
±0.5% Full-Scale Accuracy
Wide 1.7MHz Bandwidth
420μA Supply Current

Application

1. Notebook Computers
2. Portable/Battery-Powered Systems
3. Smart Battery Packs/Chargers
4. Cell Phones
5. Power-Management Systems
6. General System/Board-Level Current Monitoring
7. PA Bias Control
8. Precision Current Sources

2014年8月20日星期三

REF-431

Introduce
REF-431 is a high precision voltage reference source which used TL-431 from Texas Instruments. The TL431 is
three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial,
and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and
36V. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements
for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power
supplies.


Features
Sink-Current Capability . . . 1 mA to 100 mA
0.2-ΩTypical Output Impedance
Low Output Noise
Operation From −40°C to 125°C
Adjustable Output Voltage . . . Vref to 36 V



2014年8月19日星期二

Bluetooth UART 2.1 EDR RF Transceiver Module serial RS-232 TTL Arduino STM32

 INTRODUCTION
        
BT-1011 Bluetooth UART Module is a serial port Bluetooth module which with 2.54mm connector, the module have onboard 3.3V LDO and link indication LED, user will be very easy to use it in the application.


 FEATURES
        
l  Operation voltage from 3.3V to 5.5V
l  Bluetooth 2.1+EDR compliant
l  Support up to 3Mbps high speed UART interface
l  Support AT Command

 Pin out
    



Description
1
CFG
I
Mode config pin:
0 = AT CMD Mode
1 = NORMAL Mode(Default)
2
RXD
I
UART RX , TTL-3.3V
3
TXD
O
UART TX , TTL-3.3V
4
GND
P
Ground
5
VCC
P
Power supply (3.3~5.5V)
6
---
---
N.U
7
---
---
N.U
8
---
---
N.U
9
---
---
N.U
10
---
---
N.U
        
 photo BT-1011-BT.jpg

Please notice:
1,  Default baud rate: 9600bps
2,  Pin code: 1234

 AT Command
AT Command use fixed setting “9600,n,8,1”
All AT command with end character “\r\n”

No.
Function
Command
Parameter
Return
1
Test
AT
OK
None
2
Inquire BT Address
AT+LADDR
+LADDR = <PARA1>
<PARA1>: Local BT Add
3
Inquire Baud rate
AT+BAUD
+BAUD = <PARA1>
<PARA1>: Baud rate
4
Set Baud rate
AT+BAUD<PARA1>
1, +BAUD = <PARA1>
  OK = Set Baud rate succeed
2, <ERROR_CODE> = Failed
0=2400 , 1=4800 , 2=9600 ,3=19200 , 4=38400 , 5=57600 , 6=115200 , 7=230400 ,8=460800 , 9=921600


 ERROR CODE:
   SAVE FAIL: failed to save setting    PARA INVALID: invalided parameter
   READ FAIL: failed to reading     UNKNOW: unknow error