Search found 10 matches

by designnotes.com
Sat Feb 09, 2019 11:02 pm
Forum: Shields
Topic: CanBus v1.2 message delay and HEX structure
Replies: 4
Views: 1072

Re: CanBus v1.2 message delay and HEX structure

Hi everyone, The past few weeks have gone really well using the canbus shield v1.2 for pulling a can dump from both my pontiac and my friends FRS. I was even able to broadcast RPM back to the pontiac and have it change the tach with the engine off. Currently, I have the electronic steering system o...
by designnotes.com
Sat Feb 09, 2019 10:50 pm
Forum: Shields
Topic: CAN-BUS shield send data problem
Replies: 2
Views: 1031

Re: CAN-BUS shield send data problem

Hi all, I have a seeed canbus shield v2.0 attached on an arduino uno. My project is to send several data from sensors (analog/digital/i2c) from arduino to an external ECU via can bus protocol. At the moment I have managed to connect the shield using can L & can H and declare an identifier as 0 (zer...
by designnotes.com
Sat Feb 09, 2019 10:39 pm
Forum: Arduino & Seeeduino
Topic: Stalker v3.1: Question re: I2C selectable voltage
Replies: 3
Views: 1543

Re: Stalker v3.1: Question re: I2C selectable voltage

The Seeed product page for the Stalker v3.1 says: "I2C Pin header (operation voltage is selectable: 5.0V or 3.3V)" How is the voltage selectable? There's no switch or pad to disable the level shifter? Can this be done or is this spec in error? Hi, When they say selectable then it means then it will...
by designnotes.com
Sat Feb 09, 2019 10:31 pm
Forum: Arduino & Seeeduino
Topic: NFC Shield V2 with Arduino MEGA
Replies: 2
Views: 1215

Re: NFC Shield V2 with Arduino MEGA

Good evening, I have this Shield NFC( http://wiki.seeedstudio.com/NFC_Shield_V2.0/ ) that has been running for almost a year on an arduino UNO. I recently acquired a MEGA Arduino to expand the possibilities of my project. The NFC shield has benefited from the modifications indicated in the wiki to ...
by designnotes.com
Sat Feb 09, 2019 10:25 pm
Forum: Arduino & Seeeduino
Topic: An error occurred when uploading sketch to seeeduino lorawan board via arduino ide
Replies: 3
Views: 1140

Re: An error occurred when uploading sketch to seeeduino lorawan board via arduino ide

Hi. Currently, I encountered the issue regarding uploading sketches to seeeduino lorawan via arduino ide. The error message i get : 'Arduino: 1.8.7 (Windows 10), Board: "Seeeduino LoRaWAN" C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Ar...
by designnotes.com
Fri Feb 01, 2019 6:59 pm
Forum: Grove
Topic: Grove - Light Sensor v1.2 - Conversion to Lux values
Replies: 2
Views: 960

Re: Grove - Light Sensor v1.2 - Conversion to Lux values

milanvujovic wrote:
Thu Jan 10, 2019 8:14 pm
Hi,

Is there a formula for conversion from analog reading value to lux value?
No you cannot convert the analog data of light to Lux but if you want to get the Lux values use digital Light sensor.
http://wiki.seeedstudio.com/Grove-Digital_Light_Sensor/

I hope it will help you.
by designnotes.com
Fri Feb 01, 2019 6:52 pm
Forum: Grove
Topic: Grove Sunlight Sensor - Faulty Sensor??
Replies: 2
Views: 846

Re: Grove Sunlight Sensor - Faulty Sensor??

Hello, Using the sunlight sensor module with an AdaFruit Feather M0 and currently only running the Demo example to verify functionality. The visible light value hovers around 620 lm regardless if there is visible light or not. Placing my finger over the vis sensor does not result in any change to t...
by designnotes.com
Fri Feb 01, 2019 6:48 pm
Forum: Grove
Topic: Calibrating GSR sensor
Replies: 5
Views: 1530

Re: Calibrating GSR sensor

Hi, I am using seeeduino. Is it normal the following code to still produce the same values, regardless of whether or not I have the sensor connected? const int GSR=A0; void setup(){ Serial.begin(9600); } void loop(){ Serial.println(analogRead(GSR)); } I am also trying to follow the wiki tutorial, b...
by designnotes.com
Fri Feb 01, 2019 6:41 pm
Forum: Grove
Topic: Grove - RGB LED Matrix w/Driver examples
Replies: 3
Views: 866

Re: Grove - RGB LED Matrix w/Driver examples

Hi, The emojis are stored in the firmware of the driver and when you call it from the code it gets the emoji data via I2C communication. void GroveTwoRGBLedMatrixClass::displayEmoji(uint8_t emoji, uint16_t duration_time, bool forever_flag) { uint8_t data[5] = {0, }; data[0] = I2C_CMD_DISP_EMOJI; dat...
by designnotes.com
Fri Feb 01, 2019 6:31 pm
Forum: Grove
Topic: MQ2 Gas Sensor - Calucation of Rs
Replies: 1
Views: 522

Re: MQ2 Gas Sensor - Calucation of Rs

Hi, Welcome to the forum. Basically RL is (Load Resistance) and it is used to compute air resistance. As in the code it is considering that sensor is placed in the clean atmosphere that's why RL is considered to be 1. Reference: float RS_air; // Get the value of RS via in a clear air RS_air = (5.0-s...