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Hi All, I don't know where to post this question because it's not really relevant to Teensy at all but I desperately need some help. Currently, I'm working on a school project that needs to work with a 8x8 RGB LED Matrix as shown in the schematic below Now, if I want to light up these 2...

So I have an interesting problem My Audio Adaptor Board works perfectly (audio is played from the speaker) when it stands alone. However when I added a BLE SPI Friend to my project and now Audio Board is totally compromised (the speaker played some buzzing sound). Hardware-wise, I connected...

Oh KurtE, I think I know what happened. I deleted the line ble.sendCommandCheckOK( F("AT+GAPSETADVDATA=02-02-0D-05-02-0d-18-0a-18") ); and now it works! I think I messed up with that line

I just tried using different pins for IRQ (16, 15, 20) but none of them work. And you know what, I did this yesterday morning and I could easily detect my BLE. For some reasons, it is not working now today even when I did not change anything either hardware or software. I also tried with a...

but MISO pin is still 12 (default on Teensy 3.2) so isn't it unnecessary to add it? Should I add SPI.begin() before or after changing SCK and MOSI pins ?

#include <SPI.h> #include <Audio.h> #include "Adafruit_BLE.h" #include "Adafruit_BluefruitLE_SPI.h" int32_t deviceInfoId; int32_t nameId; int32_t HWId; int32_t FWId; int32_t serialNumberId; int32_t softwareId; #define FACTORYRESET_ENABLE 1 #define MINIMUM_FIRMWARE_VERSION "0.6.6"...

Hi all I am working on project with Teensy 3.2, Audio Adaptor Board and the Bluefruit SPI Friend. Since the Audio Adapter uses some of the SPI pins (SCK = 14, CS = 10, MOSI = 7) to talk to Audio DAC over I2S, I have to change the SPI configuration by writing #define SDCARD_CS_PIN 10...

Actuallly I have been able to do it. Thanks a lot!

HOw can I convert it to 16 bit 44.1kHz ?

So what should I do ? I have tried many files but none of them work

Hi guys I am testing my Audio Adaptor Board on Teensy 3.2 and I want to play some WavFiles. I copied the example SDTEST1.WAV from here http://www.pjrc.com/teensy/td_libs_AudioDataFiles.html to the SD card, ram the WavFilePlayer example and it played perfectly. However, when I tried to...

Oh yes you are right! Everything is perfect now Thank you so much Paul and KurtE! I really do appreciate it

it's not a complete project but I want to test the Audio Board first. That's why I don't want to solder the Teensy yet, I just used the headers to mount the Teensy on the Audio Board temporarily

it seems the DMM didn't read anything. I attached a picture showing the 2 pins I measured in order to make sure Im doing this correctly.

hmm....it's still the same... I feel like the headphone is not connected to the Jack at all At first, I thought it was my mistake when I de-soldered the jack and re-soldered it again. But I tried with the second brand new board and the problem still persists

Great! It seems to work, I can see the Monitor displays "Beep#" now. But I plugged my headphone in the jack and I still didn't hear any beep even though the display keeps going

Oh nevermind, it's ok now but the Monitor only displays "Begin". It didn't display "Beep #" or something...

I tried to upload your code and I receive this error message. I think it's something hanging...

Hi I mounted the Teensy 3.2 on the Audio Board and tried to run the Hardware Test but I didn't hear any beeping and I also didn't see any thing on the Serial Monitor. I also tried to run the WavFilePlayer example as well but I still didn't see anything on the Monitor (totally blank). Im...

I mean I don't want to use the headphone-jack, I already took the jack out so that I can connect any SMT speaker on it but I don't know how to connect.

I plan to de-solder the headphone jack to take it out but then I don't know how to connect a SMT speaker to it

Actually I first thought the board in the video is flipped upside down but I was wrong. Thank you for the clarification!

Hi I've just got the Audio Adaptor Board and I am immediately confused how to mount the teensy on the Audio Adaptor Board. As i watched this workshop video from Paul https://www.youtube.com/watch?v=wqt55OAabVs. The way he connected seems that the GND pin on Teensy is connected to 5V pin on the...

Thank you that makes sense now. I still need the answer for where to connect a SMT speaker.

Thanks for you r response! Then I wonder if the Audio Board would affect my Bluefruit SPI Friend configuration. Basically I'm also using a Bluefruit SPI Friend for this project and my SPI configurtion for this is: Do i need to change anything if I want to include both Bluefruit and the Audio...

Hi all I am new to the Audio Adapter Board and I am using a Teensy 3.2. While waiting for the parts arrive I have some general question: 1. If I want to connect the Audio Board to a SMT Speaker, how can I do that? Am I supposed to connect that speaker to L/G (or R/G) on the Line In pins ? 2...

Omg! That makes a lot of sense! I did what u said and it worked perfectly! Thank you so much!! Btw, where can I read about these things (about 3.3V regulator and ref voltage stuff like you said) ? Can I find it in the chip manual?

the analogReference(DEFAULT) would set the reference voltage to 3.3V (Unless I am wrong). I did try analogReference(INTERNAL) which sets the ref voltage to 1.2V (correct me if i'm wrong). I did same experiment and interestingly, analogRead() can only dectect Vin from 2.5V-3.7V...

Hi guys I am trying to measure the battery level (supplied to Vin pin) on Teensy 3.2 using a voltage divider. The schematic is shown below Here is my code #define battery A6 void setup(void) { pinMode(battery, INPUT); analogReference(DEFAULT); analogReadResolution(12)...

Hi guys I know this is quite an old issues and I have read a lot of resources, mainly from here But I am so confused what way would be the best to measure battery voltage (as well as percentage) that is fed in Vin pin. I am so confused about the voltage reference. Can someone explain it and...

Can you explain a bit more specific ? like how can I measure it ?

Yes I did :)

Yeh, it's my company's DMM, not mine haha

Can you explain a bit more specific like how I could check if it is ok ?

Hi guys I am having fun with my new Teensy 3.2 and currently learning the Real time clock feature on Teensy based on this link https://www.pjrc.com/teensy/td_libs_Time.html I connected a 3V coin cell to VBAT and GND pins on teensy as instructed in the link (section TimeTeensy3). For some...