• Smart Espresso Scale

    Smart Espresso Scale

    Battery-powered smart espresso scale with BLE/WiFi-capable MCU, load-cell measurement, OLED interface, USB-C charging, and debug/programming access.

    N

    natarius

    +

    U

    a month ago

    0 Uses

    0 Comments

    0 Stars

  • ESP32-C6 BNO086 Sensor Board

    ESP32-C6 BNO086 Sensor Board

    Battery-powered narrow ESP32-C6 sensor board with centered BNO086 IMU, RGB status LED, SMD vibration motor, and JST-PH LiPo input regulated to 3.3V.

    D

    david-nupoint

    a month ago

    0 Uses

    0 Comments

    0 Stars

  • ESP32 Pickleball Tracker

    ESP32 Pickleball Tracker

    Compact ESP32-C3 battery-powered pickleball telemetry tracker with high-g IMU, local flash buffering, USB-C LiPo charging, and Wi-Fi/BLE data transmission.

    S

    squidd

    a month ago

    0 Uses

    0 Comments

    0 Stars

  • ESP32-C3 ADS1115 pH ORP Sensor Interface 4412

    ESP32-C3 ADS1115 pH ORP Sensor Interface 4412

    ESP32-C3 battery-powered pH and ORP probe interface using ADS1115 differential ADC, MCP6002 through-hole buffers, DS18B20 temperature compensation, and short net labels for firmware handoff.

    S

    sudarakalakshitha

    +

    U

    a month ago

    0 Uses

    0 Comments

    0 Stars

  • ESP32-S3 LoRa ePaper Sensor

    ESP32-S3 LoRa ePaper Sensor

    Battery-powered ESP32-S3 LoRa ePaper sensor board with SHT41 environmental sensing, LiPo charging/fuel gauge, 5V input detection, and a 4.2 inch 300x400 b&w ePaper interface in an 85 x 60 mm low-profile PCB.

    J

    jkorenzvit

    a month ago

    0 Uses

    0 Comments

    0 Stars

  • Battery RC Test Circuit

    Battery RC Test Circuit

    Simple battery-powered resistor-capacitor test circuit with three connected components placed on a compact 20 mm × 20 mm PCB.

    B

    bryan

    12 days ago

    0 Uses

    0 Comments

    0 Stars

  • Phantom Fogger Control Unit-V3 2e5b 1da2

    Phantom Fogger Control Unit-V3 2e5b 1da2

    4-layer ESP32-S3 controller for a dual V-mount battery-powered film fog generator with 200 W heater PWM, pump/fan outputs, K-type thermocouple sensing, battery monitoring, and DMX-512 control.

    O

    orendafilms

    a month ago

    0 Uses

    0 Comments

    0 Stars

  • Eximport LoraLubePonto - New PCB

    Eximport LoraLubePonto - New PCB

    Production-ready industrial 6 V battery-powered LoRaWAN DC motor controller using ESP32-S3FN8, SX1262 AU915, CP2102N USB-C programming, DRV8833 motor drive, TLV62568 buck regulation, protected battery input, and Heltec LoRa V3-compatible development workflow.

    R

    ricardosbotega

    a month ago

    0 Uses

    0 Comments

    0 Stars

  • Phantom Fogger Control Unit-V3 2e5b

    Phantom Fogger Control Unit-V3 2e5b

    4-layer ESP32-S3 controller for a dual V-mount battery-powered film fog generator with 200 W heater PWM, pump/fan outputs, K-type thermocouple sensing, battery monitoring, and DMX-512 control.

    O

    orendafilms

    a month ago

    0 Uses

    0 Comments

    0 Stars

  • USB-C LiPo PIR Sensor

    USB-C LiPo PIR Sensor

    Battery-powered infrared/PIR sensor board with USB-C charging, single-cell LiPo battery input, 3.3 V regulation, sensor output header, and status indicators.

    I

    iamsoroush

    2 months ago

    0 Uses

    0 Comments

    0 Stars

  • pcbkj

    pcbkj

    Hand-solderable 9V battery-powered red LED blinker using a 555 timer astable oscillator with an on/off slide switch.

    M

    mwoq8kjh

    +

    U
    U
    U
    U

    2 months ago

    0 Uses

    0 Comments

    0 Stars

  • universajiot

    universajiot

    Hand-solderable 9V battery-powered 555 timer astable circuit that blinks a red LED about once per second through an on/off switch.

    W

    wid1cw

    +

    U
    U
    U
    U
    U
    U
    U

    2 months ago

    0 Uses

    0 Comments

    0 Stars

  • 9V 555 LED Blinker

    9V 555 LED Blinker

    Hand-solderable 9V battery-powered red LED blinker using a 555 timer astable oscillator, on/off switch, and through-hole components.

    A

    amirkat

    2 months ago

    0 Uses

    0 Comments

    0 Stars

  • ESP32-C6 CO2 Sensor

    ESP32-C6 CO2 Sensor

    Battery-powered ESP32-C6 Thread environmental sensor using SCD41 for temperature and CO2, USB-C for charging/data, LiPo power, and a buck-boost 3.3 V rail.

    A

    amirghasemi21

    5 days ago

    0 Uses

    0 Comments

    0 Stars

  • 9V 555 LED Blinker

    9V 555 LED Blinker

    Hand-solderable 9V battery-powered 555 timer circuit that blinks a red LED at about once per second through an on/off switch.

    P

    phukovsky

    +

    U
    U

    2 months ago

    0 Uses

    0 Comments

    0 Stars

  • thermal monitor

    thermal monitor

    Hand-solderable 9V battery-powered red LED blinker using a 555 timer, on/off switch, and through-hole support components for approximately one blink per second.

    P

    prawinm

    2 months ago

    0 Uses

    0 Comments

    0 Stars

  • 1 Hz 555 LED Blinker gPJ6

    1 Hz 555 LED Blinker gPJ6

    Through-hole 9V battery-powered 555 timer circuit that blinks a red LED approximately once per second using an on/off switch and hand-solderable components.

    B

    brooks

    2 months ago

    0 Uses

    0 Comments

    0 Stars

  • 9V 555 LED Blinker

    9V 555 LED Blinker

    Hand-solderable 9V battery-powered red LED blinker using a 555 timer in astable mode, with on/off switch and required decoupling/bypass capacitors.

    L

    ltembedded

    3 months ago

    0 Uses

    0 Comments

    0 Stars

  • 9V Hand-Solder 555 Blinker

    9V Hand-Solder 555 Blinker

    Hand-solderable 9V battery-powered red LED blinker using a 555 timer astable circuit, on/off switch, and through-hole support components.

    B

    bryan

    3 months ago

    0 Uses

    0 Comments

    0 Stars

  • May 2026 9V 555 LED Blinker

    May 2026 9V 555 LED Blinker

    Through-hole 9V battery-powered 555 timer circuit that blinks a red LED about once per second through an on/off switch, designed for easy hand soldering.

    B

    brooks

    3 months ago

    0 Uses

    0 Comments

    0 Stars

  • EU Smart Environmental Sensor Node

    EU Smart Environmental Sensor Node

    Battery-powered EU-component environmental sensor node using STM32WBA BLE/802.15.4 MCU, gas/particle/CO2/environment/light/audio/camera/radar/tamper sensors, and 14.4V smart Li-ion power.

    B

    batsuev

    3 months ago

    0 Uses

    0 Comments

    0 Stars

  • 9V 555 LED Blinker

    9V 555 LED Blinker

    Hand-solderable 9 V battery-powered 555 timer circuit that blinks a red LED approximately once per second through an on/off switch.

    B

    b3dn

    3 months ago

    0 Uses

    0 Comments

    0 Stars

  • nRF52840 Wearable Power Tree

    nRF52840 Wearable Power Tree

    Battery-powered nRF52840 wearable power-tree schematic with USB-C charging, nPM1100 PMIC, 3V0, 1V8_SGP41, and 5V_SPS30 rails.

    H

    haelolife

    3 months ago

    0 Uses

    0 Comments

    0 Stars

  • E-Ink Tamagotchi

    E-Ink Tamagotchi

    Battery-powered e-ink virtual pet handheld with low-power MCU, e-paper display, buttons, USB charging, and firmware support. Vibe-hardwared in 30 minutes.

    A

    adriangispert

    3 months ago

    0 Uses

    0 Comments

    0 Stars

  • 106_Project_Wiringv2

    106_Project_Wiringv2

    9V battery-powered NE555 astable blinker that flashes a through-hole red LED at roughly 1 Hz through an on/off switch.

    Z

    zynxu

    3 months ago

    0 Uses

    0 Comments

    0 Stars

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