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 […]
In 2020, I worked with an intern to characterize SD power characteristics (view the archive). As my colleagues and I embark on a mass deployment of new devices in 2025, it is time to revisit the perennial question: what SD card is best? Specifically, what SD card has the lowest current draw in an Arduino-based, […]
Learn how Hublink.cloud addresses challenges in wirelessly transferring SD card data from FED3 devices used in behavioral neuroscience experiments.
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.
Here, we present a tube-based magnet float and enclosed magnetic sensor array to determine and record sub-milliliter liquid intake every 10s called “Tubetrode”.
We aimed to determine if a spray coating could mitigate leaking. Furthermore, if deployed as a submersible/vessel, could our parts withstand acute exposure to external pressure (e.g., up to 80 meters)?
In this article, I aim to show the process of integrating the OpenAI Assistant into a web-based chatbot.
We investigated how small vias can be made when using conductive epoxy to make 2-layer PCBs using in-house manufacturing techniques.
Recently, Richards Lab has been investigating cortical activity patterns but has been limited by their ability to perform long-duration anesthesia on dunnarts.
In animal models of limb disuse, grip strength (or force) is a measure used to characterize the time course and severity of muscle atrophy.
Accuracy and applicability of Seeed Studio 60GHz mmWave Sensor (Breathing and Heartbeat Module) based on the MR60BHA1 60GHz radar module
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.
Can a simple wire antenna outperform a properly designed trace antenna?