monitor

Lipo Charge Boost Protect board in 18650 cell holder format

Lipo Charge/Boost/Protect board in 18650 cell holder format

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Disclaimer:  The circuit in use here came from GreatScott: YouTube video related to this project: https://www.youtube.com/watch?v=Fj0XuYiE7HU Thanks for the circuit GreatScott, it really works well!  The awesome find of the lipo protection chip with 2.9v cutoff – ruined way too many cells with the DW01’s 2.5v! So, down to business:  We all know the frustration of […]

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Op amps comparators – smaller than ever

Op amps, comparators – smaller than ever

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Texas Instruments introduced the industry’s smallest operational amplifier and low-power comparators at 0.64 mm2. As the first amplifiers in the compact X2SON package, the TLV9061 op amp and TLV7011 family of comparators enable engineers to reduce their system size and cost, while maintaining high performance in a variety of Internet of Things (IoT), personal electronics

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Using an MMA7455 accelerometer with an ESP32 board

Using an MMA7455 accelerometer with an ESP32 board

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The MMA7455L is a Digital Output (I2C/SPI), low power, low profile capacitive micromachined accelerometer featuring signal conditioning, a low pass filter, temperature compensation, self-test, configurable to detect 0g through interrupt pins (INT1 or INT2), and pulse detect for quick motion detection. 0g offset and sensitivity are factory set and require no external devices. The 0g

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PacketMonitor32 – An ESP32 Based Packet Monitor with OLED

PacketMonitor32 – An ESP32-Based Packet Monitor with OLED

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Wi-Fi Packet Monitors are usually a computer program or sometimes a piece of computer hardware that can be used to intercept and log traffic over a Wi-Fi network. My favorite software tool of all is the popular Wireshark which I have used several times for hacking Wi-Fi based hardware, like integrating the common Wi-Fi smart socket

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Flexible Smartwatch

Build A Thin, Flexible Smartwatch Using Arduino

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Description This project aims to build a thin, flexible smartwatch. It’s wrap-around display and touchscreen will allow it to display more data at a glance than current devices. Besides telling time and displaying notifications, the watch will feature pulse rate, blood oxygen, and step sensors for health monitoring. Details Planned Features 180mm x 32mm x

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