wliao229
wliao229
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@pushtheworld Thanks. I have four ganglions and four wifi-shield. 1 of 4 worked, the other three require two separate batteries. Also, I notice that if I keep EXT PWR ON but still use two batteries, and turn ON the wifi-shield's power switch, …
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I noticed my ganglion board may not power the wifi shield properly. I used a 3.7v Lipo battery, fully charged, on Ganglion. However, the LED (D3) on the wifi-shield keep flashing. If I separately power the shield with another battery, then it works…
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I have a same question for Ganglion: Will the A3, A4, A5, A6 on Ganglion be still accessible? Or are there any GPIO outbreaks on the wifi board that would allow reading analog signals?
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I found the https://github.com/OpenBCI/OpenBCI_Ganglion_Library has included "GanglionWithSD" for a while, and I am trying to flash that firmware. I was wondering if there is any documentation about how to change the sampling rate on Ganglion. It…
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@biomurph, Sounds good! Really appreciate your hard work!
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@biomurph That's awesome! I am looking forward to it. I also tried to use RFduino USB shield suggested in the simblee manual to upload the firmware from https://github.com/OpenBCI/OpenBCI_Ganglion_Library. It seems like I can upload the …
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Thanks, @wjcroft. I was excited to start off exploration, but I will wait for the tutorial now.
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Thank you Joel @biomurph. That's also my suspicion. I am looking forward to the tutorial. Before that, I was wondering if I need to buy a RFuino USB programing shield for Ganglion. Or can I use the UART port on the board? or can everything be done t…
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@biomurph, Thank you so much for looking into it. You are right that I used one pulse sensor that come with a board I got from http://mbientlab.com/. I didn't know it's a knock-off until I saw it. The legit one was from https://www.amazon.com/Pul…
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@wjcroft, I have checked https://cdn.sparkfun.com/datasheets/IoT/Simblee User Guide v2.05.pdf It seems like a feasible way to read Pulse Sensor is to analogRead() from one of AIN2, AIN3, AIN4, AIN5 pins on the board, and then pack them to t…
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Thanks @wjcroft! I messaged Joel. I was wondering whether I need to change the firmware if I have to use the AUX channels for signals from Pulse Sensor(s). That sounds quite daunting for me...
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Thanks William @wjcroft for pointing out the two repos from Joel @biomurph. It seems like they all rely on some preprocessing of the raw data on the board. I was wondering if I can simply read the raw signals from Pulse Sensor (And I did found two D…
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Hi @wjcroft, I have managed to connect 2 pulse sensors to a Ganglion by attaching both pulse sensors's power supplies to AVDD and GNDA, and their signal pins to two separate channels (+ pins of channel 1 and 4) on the board. I observed a weird int…
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Thanks.
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Hi @wjcroft and @matt16, I have the same issue but I realized I am using an old MacBook pro (2009), which does not come with built-in BLE support. In this case, do I have to use a newer Mac or just PC+BLE dongle?
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Thank you for the information, William. I will try to learn bit more about Arduino.
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Thank you William. I just pre-ordered 4 Ganglions because I need to track four individuals' heart rate wirelessly. I figure that it would be easier to have a separate Ganglion + Pulse Sensor for each individual. Im still pretty new to this. I al…