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72 projects
4.4k
59
49
Step-by-Step guide on how Lithium Battery charger circuit works and full assitance for DIY protect charger through USB port.
Project Owner Contributor

DIY Protected Lithium Battery Charger (TP4056)

diy-guy-chrisDIY GUY Chris

5.8k
67
60
A pocket demon named Exy. Luci? Haven't heard about him.
Project Owner Contributor

Xling

dsldsl

2.6k
28
29
Battery powered, internet connected weather station
Project Owner Contributor

E-ink weather station (pumpkin edition)

x-labzx-labz

75
2
1
Is it possible to + physically apply Newton's third law of motion as a dynamic cycle system in a motor device in a positive way.
Project Owner Contributor

It Can Apply the Newton III Law on an EngineSystem

carlos-barreraCarlos Barrera

159
3
3
In this tutorial, I am going to show you guys how to create this Arduino based touchless concrete clock.
Project Owner Contributor

Arduino Based Concrete Clock With Touchless Lamp

hulkHulk

1.3k
7
6
RF-Sensor for temperatur, humidity and water leak with decades of battery lifetime
Project Owner Contributor

Ultra Low Power RF-Sensor

christophChristoph

836
9
7
Low power, low cost, low parts and low channel count USB talking LoRaWAN gateway (without concentrator) for OpenWRT routers and pals
Project Owner Contributor

Low Power LoRaWAN Gateway

morphmorph

3.6k
33
25
A useful tool that injects small currents into your circuits, below the range of your usual lab PSU
Project Owner Contributor

Precision current generator

yann-guidon-ygdesYann Guidon / YGDES

112
1
1
Roamer 3 is a capacitor powered autonomous pet robot that likes to hang around humans.
Project Owner Contributor

Roamer 3

mike-rigsbyMike Rigsby

16.7k
1.7k
200
Loko is the 12 gram GPS tracker with extreme battery life.
Project Owner Contributor

Loko-the Tiniest GPS tracker with 270 days battery

akio-satoAkio Sato

1.2k
14
13
A Ultra Low Power Shortcut Eink Keyboard that works on Bluetooth or Wired. With Wifi, LoRa, SD Card, Joystick, Rotary Volume Knob
Project Owner Contributor

LowPow E-Ink ShortKeyboard BLE, Wired, LoRa,Wifi

ulrichUlrich

1.8k
8
9
Yet another overly engineered business card, that probably I would never give a way, because it is too expensive.
Project Owner Contributor

Electronic CV

dimitarDimitar

94
3
2
VacSafe uses an endothermic reaction and the thermos flask concept to keep vaccines cool during transport and prevent wastage.
Project Owner Contributor

VacSafe

soham-chakrabortySoham Chakraborty

198
1
2
Make a low-cost, low-power light show responsive to specific musical notes present in ambient sound.
Project Owner Contributor

Musical note-detecting light display

mattMatt

1.3k
13
12
An attempt at building a stylish, low-power calendar, thanks to the ESP32 and an e-paper display that (for now) resembles a framed picture
Project Owner Contributor

Low-Power E-Paper Calendar

johnJohn

4.5k
93
65
Ultra low power monitoring of temperature, humidity, pressure, reed contacts and motion. With Encryption!
Project Owner Contributor

Canique Ambience

caniquecanique

3.3k
27
26
Solar camera embedded micro satellite circuit sculpture
Project Owner Contributor

MicroSat Circuit Sculpture

blanchard-jordanBLANCHARD Jordan

2.4k
39
33
Open Design Ultra Low Power Sensor Tag for light, temperature, humidity and pressure. openthread on Zephyr with json to MQTT and Grafana
Project Owner Contributor

Openthread Sensor Tag

wassimWassim

27.1k
351
348
A low-power E-Paper weather display powered by an ESP32 microcontroller. Utilizes the OpenWeatherMap API.
Project Owner Contributor

ESP32 E-Paper Weather Display

lmarzenlmarzen

2.4k
63
54
An Indoor Air Quality System with E-Paper Display, LoRa communication and WiFi AP configuration
Project Owner Contributor

Hermetis

manuel-alfonsoManuel Alfonso

3.4k
18
19
This ultra-low power sensor is used to monitor temperature. Long-range wireless using a CR2032 battery.
Project Owner Contributor

Long-Range Thermocouple Temp Sensor

discreet-mayorDiscreet Mayor

7.8k
66
54
Wireless Sensor Network Platform (WSN) , for enviromental monitoring
Project Owner Contributor

Green Detect

sergio-ghirardelliSergio Ghirardelli

779
377
8
A little coin cell powered raccoon with capacitive sensing to light up its eyes
Project Owner Contributor

Light Up Raccoons

savoSavo

4.3k
41
42
A fully custom Arduino E-Paper BLE clock in a 3D Printed case using nRF52832 with one year run time one a single 18650
Project Owner Contributor

Triink - low power BLE E-Paper Clock

aaron-christophelAaron Christophel

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