Showing 61–72 of 239 results
DB9 Male Terminal to RS232/RS485 Conversion Board
DC 12-24V 4-20mA Single Source Signal Generator Constant Current 0.01mA
Features:Â
- Power Supply: DC 12V/24V
- Total Power: <1W
- Output: 4-20mA
- Output Load Impedance: 0-350 ohms(DC 12V); 0-800 ohms(DC 24V)
- Overall Size: 80mm * 42mm
- Weight: 55g / 1.94oz
- Package Size: Approx. 12 * 7 * 4cm
- Package Weight: 61g / 2.16oz
- Can be used: signal sources, regulating valves, test instrumentation, light-emitting diode test, the inverter output analog transmitter.
DC 3-5V X9C103S Digital Potentiometer Board Module for Arduino
Features:
- Supply voltage: 3V-5V
- Chip: X9C103S
- Dimensions : 28 x 14 x 4 (LxWxH) mm.
- 10K span potentiometer.
- Potentiometer center tap between the 0-10k slide in total 100
- VL and VH digital potentiometer sliding rheostat port corresponding to the low-end and high-end, allowing the input voltage range -5V to + 5V.
DC Power Jack Breakout Board
DDS Function Signal Generator Module Sawtooth Triangle Wave Sine Square Sawtooth Wave Kit 1Hz-65534Hz DC 7V-9V LCD Display
Features:
Display: 1602 LCD Operating Voltage: DC 7V-9V DDS Frequency Range: 1Hz-65534Hz Frequency(HS) Output: up to 8MHz Section into the Value: 1, 10 , 100, 1000, 10000 Hz Offset: 0.5pp-5Vpp Amplitude Amount: 0.5Vpp-14Vpp PCB Board Size: approx. 100 * 80mm / 3.94 * 3.15in Product Weight: approx. 100g / 3.53oz
Digispark ATTINY85 Mini USB Development Board
Specifications :
- High Performance, Low Power AVR® 8-Bit Microcontroller
- Non-volatile Program and Data Memories
- 8K Bytes of In-System Programmable Program Memory Flash
- Endurance: 10,000 Write/Erase Cycles
- 512 Bytes In-System Programmable EEPROM
- 512 Bytes Internal SRAM
- Peripheral Features
- Two High-Frequency PWM Outputs with Separate Output Compare Registers
- USI – Universal Serial Interface (12C, SPI, 1-wire) with Start Condition Detector
- 10-bit ADC
Digital DT-9000 Passive RS232 to RS485 converter
Specifications :
- Interface characteristics: interface compatible with EIA/TIA RS-232C, RS485 standard
- Electrical interface: RS-232 end DB9 pass connector, RS-485 end DB9 needle type connector, with terminal
- Work mode: asynchronous half duplex differential transmission
- The transmission medium: twisted pair cable (wire diameter greater than or equal to 0.5MM) or shielded wire
- The transmission rate: 300-115.2KBPS
- Size: 64mmX33mmX17mm
- The use of the environment: -20 degrees to 70 degrees, relative humidity of 5% to 95%
- The transmission distance: less than 1200 meters (RS-485 end) 15 meters (RS-232 end) within
- The protection of lightning surge protection grade: RS-485 interface of each line of 600W
- Two kinds of communication modes: point to point / two line half duplex and point to multipoint / two line half duplex
Digital DT-9003 Passive RS232 to RS485/RS422 converter
Specifications :
- Â Interface characteristics: compatible with EIA/TIA RS-232C, RS-485/RS-422 standard
- Electrical interface: DB9 female connector at RS-232 end, DB9 male connector at RS485/RS422 end, with 6 position terminal board
- Â Working mode: Asynchronous Full Duplex, half duplex automatic selection of differential transmission, without jumper settings
- Transmission medium: twisted pair wire or shielded wire
- Transmission rate: 300BPS-115.2KBPS
- Size: 64mmX33mmX17mm
- Use of the environment: -20 degrees to 70 degrees, relative humidity of 5% to 95%
- Transmission distance: 1200 meters (RS-485 end), 5 meters
- (RS-232 end)
Digital DT-9004 Passive RS232 to RS485 converter(with lighting)
Specifications :
- Interface characteristics: interface compatible with EIA/TIA RS-232C, RS485 standard
- Electrical interface: RS-232 end of the DB9F, RS-485 is DB9M connector
- Work mode: asynchronous half duplex
- The transmission medium: twisted pair (diameter greater than or equal to 0.5MM) or shielded wire
- The transmission rate: 300-115.2KBPS
- Size: 64mmX33mmX17mme
- The use of the environment: -20 C to 70 C, relative humidity of 5% to 95%
- The transmission distance: 1200 meters (RS-485) to 15 meters (RS-232)
- Protection class: surge protection of RS-485 interface on each line of the 600W.
- Two kinds of communication: two line / half duplex point-to-point and point to multipoint / two wire half duplex
- Note: in order to prevent reflection and interference signal, to pick up a matching resistor in the circuit of the terminal (parameter 120 ohm 1/4W), as the case may
Downloader Expansion Board for TTGO T-Internet- POE
Dtech Digital DT-9011 Passive RS232 photoelectric isolation protector
Specifications :
- Standard: EIA RS-232 standard
- RS-232 signal: TXD,RXD, GND
- Working: Asynchronous, point to point
- Transfer rate: 300-912600bps,auto sense serial signal rate5. Isolate signal: TXD,RXD, GND
- Transfer distance: 5m
- RS-232 port protection: 600W surge,15KV ESD protection
- Isolation: 5000V
- Port type: DB9F, DB9M
Dtech Digital DT-9015 Passive RS232 RS485 Converter with LED Signal Photoelectric Isolation Type Indicator
Specifications :
- Product name: RS-232 to RS-485 Converter with Isolation
- Standards: RS-232C, RS-485 EIA/TIA
- Connector: RS-232 DB9 female, RS-485 DB9 male
- Protection: RS-232 ±15KV ESD protection,RS-485 each line 600W lightning, surge protection
- Isolation: Isolated voltage 2,500Vrms  500DC non-stop
- Working mode: Asynchronous half-duplex
- RS232 to RS485 Two-way transmission
- Dual LED display transmission status
- Built-in power stealing circuit, support three-wire serial port
- Baud rate adaptive:1200bps-512kbps
- Transmission media: Twisted-pair or shielded cable
- Transmission rate:38,400bps  to 300m; 9,600bps to 1.2Km