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รายละเอียดสินค้า
ใช้แปลงระหว่าง CAN bus เป็น TTL ซึ่ง CAN bus ปัจุบันเป็นที่นิยมมากในการสื่อสารระหว่างบอร์ดคุมมอเตอร์และบอร์ดไมโครคอนโทรลเลอร์ รวมถึงอุปกรณ์ย่อยๆในรถยนต์รุ่นใหม่ๆ CAN bus tranceiver ตัวนี้เป็นเพียงตัวแปลงสัญญาณ TTL ในรูปแบบ CAN Bus ให้เป็นระดับแรงดันแบบ CAN bus เหมาะกับ ESP32 ที่มี CAN bus controller ในตัวอยู่แล้วผ่านขา GPIO4 และ GPIO5 ซึ่งวิธีการใช้งานสามารถใช้ไลบรารี่ https://github.com/sandeepmistry/arduino-CAN ได้ทันที ตัวอย่าง Code สำหรับใช้งาน TJA1050 กับ ESP32 ฝั่งรับ #include <CAN.h>
void setup() {
Serial.begin(115200);
while (!Serial);
Serial.println("CAN Receiver");
// start the CAN bus at 500 kbps
if (!CAN.begin(125E3)) {
Serial.println("Starting CAN failed!");
while (1);
}
}
void loop() {
// try to parse packet
int packetSize = CAN.parsePacket();
if (packetSize) {
// received a packet
Serial.print("Received ");
if (CAN.packetExtended()) {
Serial.print("extended ");
}
if (CAN.packetRtr()) {
// Remote transmission request, packet contains no data
Serial.print("RTR ");
}
Serial.print("packet with id 0x");
Serial.print(CAN.packetId(), HEX);
if (CAN.packetRtr()) {
Serial.print(" and requested length ");
Serial.println(CAN.packetDlc());
} else {
Serial.print(" and length ");
Serial.println(packetSize);
// only print packet data for non-RTR packets
while (CAN.available()) {
Serial.print((char)CAN.read());
}
Serial.println();
}
Serial.println();
}
}
ฝั่งส่ง #include <CAN.h>
void setup() {
Serial.begin(115200);
while (!Serial);
Serial.println("CAN Sender");
// start the CAN bus at 500 kbps
if (!CAN.begin(125E3)) {
Serial.println("Starting CAN failed!");
while (1);
}
}
void loop() {
// send packet: id is 11 bits, packet can contain up to 8 bytes of data
Serial.print("Sending packet ... ");
CAN.beginPacket(0x12);
CAN.write('h');
CAN.write('e');
CAN.write('l');
CAN.write('l');
CAN.write('o');
CAN.endPacket();
Serial.println("done");
delay(1000);
// send extended packet: id is 29 bits, packet can contain up to 8 bytes of data
Serial.print("Sending extended packet ... ");
CAN.beginExtendedPacket(0xabcdef);
CAN.write('w');
CAN.write('o');
CAN.write('r');
CAN.write('l');
CAN.write('d');
CAN.endPacket();
Serial.println("done");
delay(1000);
}
The TJA1050 is the interface between the CAN protocol controller and the physical bus. The device provides differential transmit capability to the bus and differential receive capability to the CAN controller. The TJA1050 is the successor to the PCA82C250 high speed CAN transceiver. The most important improvements are: • Much lower ElectroMagnetic Emission (EME) due to optimal matching of the CANH and CANL output signals • Improved behaviour in case of an unpowered node.
Specifications:
Input:
Output:
TJA1050 Chip Product Features:
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Exchange or return policy
Every item comes with a 30-day warranty. However, there are certain conditions that apply:
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The customer should not be responsible for any self-inflicted damage, such as incorrect power connections (for example, supplying 5V instead of the required 3.3V for a sensor).
-
The product must be in perfect condition, without any breakage or damage caused by electricity (e.g., short circuits leading to electrical fires).
-
The store does not accept product exchanges due to customer misunderstandings, such as purchasing the wrong size for their project or buying something without eventually using it. Customers can inquire about the product details and ensure compatibility before making a purchase by contacting us through our Line account @modulemore during business hours. Please note that there may be delays in response between 12:00 PM and 2:00 PM.
Return Policy: To initiate a product return, customers must provide the original receipt or a copy for quick verification. Returns can be sent to our store address by following these guidelines:
- Provide a detailed description of the damaged item(s).
- Mention any tests or experiments conducted by the customer.
Please note that the store reserves the right to make the final decision regarding product replacement or refund.
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Arduino compatible board, Iot, ESP32, ESP8266, Nodemcu, Raspberry pi, micro:bit and etc.
Mobile number : 0831710868
E-mail : paheyisoicus@gmail.com
E-mail : paheyisoicus@gmail.com
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