4 CH RS485 ETH Expansion Board for RPI Raspberry Pi Compute Module CM4 Lite 8GB

$51.0 Buy It Now or Best Offer
free,30-Day Returns

Seller Store stemdiy
(311) 100.0%,

Location: Shen Zhen
Ships to: US,
Item: 385156818500

Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money back or replacement (buyer’s choice)
Waveshare:Waveshare
Type:CM4-ETH-RS485-BASE-B
MPN:cm4 io carrier breakout board 4gb ram,cm4 lite 16gb 32gb ram emmc

4-CH RS485 ETH Board for RPI Raspberry Pi Compute Module 4 CM4 Lite 4GB 8GB RAMPACKAGE CONTENT: ( NOT include Compute Module 4 ) CM4-ETH-RS485-BASE-B x11 WIKI English manual: waveshare.com/wiki/CM4-ETH-RS485-BASE-BDual ETH Quad RS485 Base Board For CM4Designed For Raspberry Pi Compute Module 4SpecificationsCM4 SOCKETsuitable for all variants of Compute Module 4NETWORKINGGigabit Ethernet RJ45 connector, 100M Ethernet RJ45 connectorCONNECTORIsolated RS485 × 4, Power screw terminal × 1USBUSB 2.0 Type A × 2CAMERAMIPI CSI-2 port × 2 (15pin 1.0mm FPC connector)VIDEOHDMI port × 1, supports 4K 30fps outputRTCReal-time clock with battery socket and ability to wake Compute Module 4STORAGEMicroSD card socket for Compute Module 4 Lite (without eMMC) variantsFAN HEADERallows speed adjustment, 5VINDICATORPower indicator × 1, CM4 status indicator × 1,User LED × 2, RS485 communication indicator × 8POWER INPUT7-36VDIMENSIONS93.6 × 108.8mm More Rich InterfacesVarious Interfaces Including: Dual ETH / RS485 / CSI / FAN / HDMI / Micro SD / USBApplication ExamplesSuitable For Raspberry Pi Applications Requiring Multi-Channel RS485 Communication Or Other Industrial Contextfor reference only, CM4, display, and cameras are NOT included.What’s On BoardCM4 socketsuitable for all variants of Compute Module 4IO-VREFSet the CM4 IO logic level as 3.3V (default) or 1.8VRTC-12C: 12C bus selection for RTCCan choose SDA0 & SCLO (default) or GPIO2 & GPIO3RTC INT: RTC interrupt pin selectD16: Use GPIO16 to receive interrupt signal when RTC interruption (default)GL-EN: CM4 powerdown on RTC interruptionPI-RUN: CM4 will reboot on RTC interruptionSYSTEM: System function configurationWP-DIS: Prevent EEPROM from being overwrittenBT-DIS: Disable Bluetooth function, for CM4 with antenna variant ONLYWIFI-DIS: Disable WiFi function, for CM4 with antenna variant ONLYBootON: CM4 will be booted from USB-C interfaceOFF: CM4 will be booted from eMMC or Micro SD cardPWR & USBWhen the BOOT switch is “ON”, can be used as the USB programming or DC power supply portWhen the BOOT switch is “OFF”, only used as the DC power supply portHDMI0HDMI port, supports 4K 30fps outputUSB2x USB 2.0, for connecting sorts of USB devicesETHERNET0CM4 original Gigabit RJ45 ETHETHERNET1USB extended 100M ETHCAM0 & CAM12x MIPI CSI camera portsBuzzerGPIO22 controlFAN4-pin FAN header, only supports 5V FAN, allows PWM speed adjustment (GPIO18 control, speed measurement is not supported)RTC battery socketSupports CR1220 button cellRS485 TX/RX indicatorTXn: TX indicator for channel nRXn: RX indicator for channel nUser LEDUSER0: GPIO20 controlUSER1: GPIO26 controlPWRRaspberry Pi power indicatorACTRaspberry Pi working status indicatorDC 7~36VDC power supply interfacePower input terminalDC power supply terminal, supports 7~36V wide range power inputRS485 terminal4 x Isolated RS485 terminal with a spacing of 5.08mmJumper120R Balance Resistor Selection JumperRS485 operating mode selectionFull-auto: automatic mode, easy for program operation but the load capacity is weakSemi-auto: semi-automatic mode, which requires manual TX/RX switching, with high reliability and strong load capacityEncryption chipATSHA204 encryption chip, providing multiple encryption to ensure data security and reliabilityMicro SD card slotfor connecting a Micro SD card with pre-burnt image (Lite variant ONLY)Outline Dimensions About delivery TimeDelivery detailsAbout after-sales policyAbout delivery TimeIt takes 12-20 working days to arrive most European countries using standard shipping.Some European island countries, overseas territories and South American countries need to arrive in 25-35 working days. For urgent parcel, you can email us and choose Fedex, DHL, UPS, EMS etc., but you need to pay extra fee.Delivery detailsIf you need to use the express delivery service, please contact me via eBay mail.About after-sales policyWe absolutely stand behind our products. All of our items will be checked and tested before shipment to ensure 100% performance. We also offer 15 day money back guarantee if you are unsatisfied for any reason whatsoever. We will refund the entire cost of the item not including the shipping and insurance charges. Our aim is 100% customer satisfaction! If you are unclear about product usage, please feel free to contact us. We will offer your detailed instructions for use.

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