A common failure mode for the Kravitz Lab FED3 is a broken/burned out “beam break” or photointerrupter module. The can happen either because the lenses are marred via scratching or chewing, or the module itself has outlived its stated “50% degradation over 5years” (see the SHARP GP1A57HRJ00F Datasheet or purchase them on DigiKey). Testing the […]
The Adafruit Feather ESP32-S3 is a little powerhouse of a module. It has a neopixel, LiPo charger and monitor, your ESP32 reset and boot buttons, and a nice little isolated I2C power line with a Stemma QT connector. I recently implemented a deep sleep program with the ULP co-processor (see also, Using the ESP32-S3 ULP […]
The ESP32 devices’ Ultra-Low-Power (ULP) coprocessor enables access to peripherals such as RTC GPIO, RTC I2C, SAR ADC, or temperature sensors (TSENS).
Impedance is the opposition to electrical current in a circuit, and in brain electrodes, it matters because high impedance can reduce signal quality, leading to poor detection of neural activity or inefficient stimulation delivery.
FED failures can be traced to IR sensor and circuit board issues, which can be remediated with an isopropyl wash.
In this article, I aim to show the process of integrating the OpenAI Assistant into a web-based chatbot.
In applications where electrodes are being routed or weaved—especially if the animal will undergo full recovery and resume normal behavior (like in a wild or free-ranging animal)—lead flexibility is going to be critical to the endurance and quality of the electrophysiological recordings.