Forum >Replies by robert.chen
Replies （20）
- Topic: Service life of sensorsYou Reply: Under normal environment, the sensors could work for several years, but if you keep using it like 7*24, the life span may be one year.
- Topic: Small but quiet motorYou Reply: The noise comes from the gear box, I am not sure how nosiy you can endure.
- You Reply: You need to set by the AT command by USB cable, you can find the information from the wiki page. https://www.dfrobot.com/wiki/index.php/ ... KU:DFR0351
- Topic: dfrobot ts01You Reply: The temperature range -40℃~85℃ has an accuracy of ±0.5℃, beyond this range more, the accuracy would be lower.
- Topic: I have a questionYou Reply: Could you specify what sensor are you using?
- You Reply: To calibrate the sensor, it is better to run it in the fresh air for 20 mins before calibration.
- You Reply: What is the distance you measure, there should be some accuracy error when measuring the distance.
- Topic: Shipping to RussiaYou Reply: Because there is liquid in these products, we can not ship any liquid to Russia.
- You Reply: What is the test code you use, the analog to digital conversion one?
- You Reply: Yes, this jumper cable can be used to connect the laser ranger finder to Firebeetle with the bread board, they are OK to use.
- Topic: DFR0548 Max Input voltageYou Reply: The Vin need to be 3.5~5.5V
- Topic: Romeo v1.3 Button ExampleYou Reply: Did you put the switch on when you want to use the button?
- Topic: SIM7000C not workingYou Reply: Are you sure that Airtel 4G support NB-IoT?
- You Reply: Yes, it is possible, you can use UNO to read the DO value and then send the data through ESP8266.
- You Reply: Have you also input : AT+BLUNODEBUG=OFF for both BLE devices?
- You Reply: Yes, only the pin definition are different.
- Topic: Devastator Track WidthYou Reply: Hi
The width is about 38mm - Topic: SEN0140 mounting detailsYou Reply: Is this picture clear enough to show the dimension of the holes and the pin connector's space is 2.54mm.
- Topic: RLY 8 Unable to connectYou Reply: How about just use the COM port to control it through serial?
- You Reply: This sensor is soldered together, it can not be separated, if you want to put the probe out of the box, you can consider to use the one with separate probe (SEN0220)