Description: Product Title: DC 12V 24V 8AI-8DI-8DO ESP-WROOM-32 ESP32 Expansion Board RS485 4-20MA 0-5V 0-10V Analog Collection Wifi Relay Switch DIY 1PCS DC 12V 24V 8AI-8DI-8DO Expansion Board RS485 Analog Collection Wifi Relay Switch Product Features: 1 Operating voltage: DC 12V/24V 2 Operating Current : Standby current (Digital tube OFF) 14MA, Standby current 51MA (Digital tube ON), 1 relay open 76MA, 2 relays open 107MA, ... 8 relays open 291MA 3 On-board resources: 1x RS485 Interface 8x opto-isolated inputs (low level trigger, NPN type), 4x 0/4-20MA Current Input,4x 0-5V/10V Voltage Input,4x buttons, 1x 4 bit digital tube display, 1x ESP32 slots, 8x relay outputs ES32A08 Relay Module: 4 size 180*72*20mm(Only Board) 5 Weight : 189g(Only Board), 317g(with shell) ES33B08 Darlington tube Module: 4 size 123*72*20mm(Only Board) 5 Weight : 93g(Only Board), 184g(with shell) Please contact me for more information! Purchase Notes: 1 ES32A08/ES33B08 can not work independently, must be under the control of the 38PIN ESP32 board to work,If you do not have a 38PIN ESP32 board, purchase it separately or purchase a kit with 38PIN ESP32 2 This is an expansion board based on 38PIN ESP32. We only provide three vscode codes for testing the hardware. More codes and functions need to be developed by yourself. 3 If you need more functionality, write your own code. We do not provide additional code and technical support 4 The acquisition accuracy of analog quantities is determined by the ESP32 board. It is recommended to collect multiple times to obtain the average value. Application examples: As long as you write ESP32 code,You can use it to achieve a variety of delay timer function,such as: WIFI remote control switch WIFI Current and voltage collection RS485 Master-Slave Device(PLC MCU), 4x 0/4-20MA Current Collection, 4x 0-5V/10V Voltage Collection, Motor forward and reverse, Timing on, Timing off, Power-up delay, Trigger delay, Infinite loop delay, A finite number of cyclic delays, Power sequencer, And so on. Application 1: Through the programming of 38Pin ESP32, various delay customization functions can be realized instead of PLC. Application 2: It can be used as an RS485 master device instead of PLC/PC/touch screen to control various RS485 slave devices.
Price: 16.89 USD
Location: Guangzhou
End Time: 2024-02-23T09:16:04.000Z
Shipping Cost: 2.99 USD
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Item Specifics
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
Brand: eletechsup
Type: ESP-WROOM-32
Available Variations
Color: 12V Relay Only Board
Price: 22.98 USD
Available Quantity: 100
Quantity Sold: 0
Color: 24V Relay Only Board
Price: 22.89 USD
Available Quantity: 100
Quantity Sold: 0
Color: 12V Relay With Shell
Price: 25.89 USD
Available Quantity: 100
Quantity Sold: 0
Color: 24V Relay With Shell
Price: 25.89 USD
Available Quantity: 100
Quantity Sold: 0
Color: 300MA OUT Only Board
Price: 16.89 USD
Available Quantity: 100
Quantity Sold: 0
Color: 300MA OUT With Shell
Price: 19.89 USD
Available Quantity: 102
Quantity Sold: 2
