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Description
Industrial Control Board Communication Device Supports WiFi / Bluetooth Built-In Multiple Protection Circuits, 321541. Microcontroller: ESP32 S3 (default is ESP32 S3R8 chip) 2. Wireless communication: 2. 4GHz Wi Fi (802. 11 b g n), Bluetooth 5 (LE) 3. USB interface: Interface type: Type C Power supply voltage: 5V Functions: power supply for the device, USB communication, firmware download, etc. 4. Isolated RS485 communication interface: Interface type: terminal block Direction control: automatically controlled by the main control hardware flow setting Interface
1. Microcontroller: ESP32-S3 (default is ESP32-S3R8 chip)
2. Wireless communication: 2.4GHz Wi-Fi (802.11 b/g/n), Bluetooth 5 (LE)
3. USB interface:
- Interface type: Type-C
- Power supply voltage: 5V
- Functions: power supply for the device, USB communication, firmware download, etc.
4. Isolated RS485 communication interface:
- Interface type: terminal block
- Direction control: automatically controlled by the main control hardware flow setting
- Interface protection: provides TVS diode protection, surge and static protection
- Matching resistance: default NC, reserved 120R matching resistor, can be enabled by jumper cap
5. Isolated CAN communication interface:
- Interface type: terminal block
- Direction control: hardware automatically determines and controls the data transmission direction
- Interface protection: provides TVS diode protection, surge and static protection
- Matching resistance: default NC, reserved 120R matching resistor, can be enabled by jumper cap
6. Indicator lights:
- PWR: power indicator light, connected to USB, turns red when voltage is detected
- RS485: RS485 indicator light: Green when data is sent from the RS485 interface, blue when data is sent back from the RS485 interface
- CAN: CAN indicator light, flashes when data communication exists at the CAN interface
7. Terminal power supply range: 7V - 36V
8. Shell: rail-mounted protective shell
9. Size: about 9.16 x 2.33 x 5.87cm
Feature:
1. Based on the ESP32-S3 single-chip microcontroller, it is equipped with an Xtensa 32-bit LX7 dual-core processor with a maximum clock frequency of 240MHz
2. It integrates 2.4GHz Wi-Fi and low-power Bluetooth 5 (LE) dual-mode wireless communication, featuring excellent radio performance
3. It has an isolated RS485 interface, facilitating the external expansion of various RS485 Modbus industrial expansion modules or sensors
4. It has an isolated CAN interface, facilitating the external expansion of various CAN devices
5. It has an edge connector interface, allowing for the connection of other devices
6. It has a USB Type-C interface, which can be used for power supply and download debugging, facilitating development use
7. It has an isolated wiring terminal power supply interface, supporting a wide voltage range of 7V - 36V, facilitating the use of industrial power supply ports
8. It has an RTC clock chip, supporting timing tasks
9. It has digital isolation to avoid external signal interference to the control chip
10. It has an integrated power isolation unit, which can provide stable isolated voltage, and the isolated end does not require additional power supply
11. It has RS485 receiver and transmitter indicator lights and CAN operation indicator lights, facilitating the perception of the devices operating status
Specification:
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4.2 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Incredible & Absolutely Fascinating
Format: Paperback
This book is incredible. Very well researched and balanced in approach. It is the best book I've ever read on the early church and the most inspiring book I've read on how the church can be powerful without seeking worldly power. I would highly recommend this to every pastor and serious Christian. I wouldn't advocate for adopting everything the early church did (Kreider doesn't either), but there is so much to learn. Especially the church in the West, and specifically in America, where Christian nationalism is on the rise. This book could not be more timely or important in helping people understand the relationship between the church and government, and why discipleship that actually changes the habits, values, and lives of Christians must become the hallmark of the church again.
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Reviewed in the United States on March 25, 2026
★★★★★ 5
So much I never realized about the shaping of the early Church
Format: Paperback
This is one of the best books I've read. Really well researched. It is interesting in its empahsize on the virtue of patience from the perspective of the early church as it was shaped and formed into what we recognize as The Church.
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Reviewed in the United States on June 27, 2024
★★★★★ 5
Profoundly challenging; I'm going back to this over and over
Format: Paperback
The remarkable growth of the early church has puzzled and challenged scholars. How did a tiny sect that attracted mainly the poor and unimportant and faced waves of persecution grow? How did they sustain their vigor and their distinctiveness such that well into the third century they were still well known for their non violence and care of the poor and downtrodden? Why did the church make baptism and membership so difficult? I've never found satisfactory answers. Kreider's exhaustively researched book did more than answer those questions. It stirred and challenged my thinking about how to "do church."
He argues, with compelling evidence, that a central conviction by the early Christians had much to do with their sustained vitality. They centered on the teachings of Jesus, in particular the sermon on the mount. They actually believed they were to live in obedience to the upside down Way of Jesus. It was this distinctive and intriguing lifestyle - Kreider uses the term "habitus" or their habitual behavior - that the church insisted upon and that attracted others. They patiently lived in community, expecting that over time, the impact of the light of their lives would "bubble up" or ferment in the lives of their neighbors.
So, rather than emphasize evangelism, the early Christians emphasized catechesis - careful formation and teaching. Only after a lengthy period of time - up to three years! - during which the prospective member was mentored and drilled in the life of Christ, was the person allowed to be baptized and take the Lord's Supper. They had to demonstrate, prove, that they were indeed genuinely living the life of Christ. Caring for the poor, sharing their resources, returning good for evil, turning the other cheek - those things had to be demonstrably evident.
Kreider ends by contrasting this patient habitus with the changing focus after Constantine. His examination of Augustine's redefinition of faithful Christian living that provided a way for Christians to both claim allegiance to Jesus' teachings yet use force and violence was both incisive and deeply saddening.
These days, most followers of Jesus do a better job of rationalizing why they can't take the Sermon on the Mount as more than platitudes. This book further challenges me, and I hope, the church at large, to actually live like Jesus! What a novel idea.
There are just a handful of books that have deeply influenced me, books that I find myself returning to again and again. The Patient Ferment is one of those books now. I hope this book becomes widely read, and even more, widely influential. May it disturb our comfort...
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Reviewed in the United States on May 8, 2017
★★★★★ 4
Insightful, balanced and thoroughly researched
Format: Kindle
I was a bit afraid that this book would somehow a attribute of the early church, postulate it as a silver bullet and then suggest it simplictically as the only solution for the modern day church. Instead I got a well balanced, finely nuanced and engagingly told narrative of the early church and the role patience was practiced, neglected and rethought by various Christian groups and bishops. The book end with an adequate invitation to think the concepts through for our own time.
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Reviewed in the United States on January 11, 2018
★★★★★ 5
Excellent
Format: Paperback
I might be as bold to say this is my favorite book on Christianity I have read to date.
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Reviewed in the United States on October 2, 2025