ESP8266: Solar Powered Server

Low-tech, High-life

In true low-tech fasion I'm hosting this micro capsule from a €1 microcomputer powered by a solar energy!

Image of the capsule in its natural environment ;) [29.2KB]

Solar-powered means that it is ON-LINE only when there is enough sun thru the day to recharge the battery.

It's a proof-of-concept an a little poligon. My end goal is to have small, cheap and realiable device to host gemini capsules in the rural areas.

Hardware List

• 🖳 ESP-01S ~€1
• 🌞 Solar cell 0,7W/5,5V €4.10
• 🂠 Lipol charger TP4056 1S 3,7V €1.37
• 🔋 EMAX 1s 450mAh battery ~$9 (I got mine from a drone)

Hardware Specs

Specifications of 🖳 microcontroller

• ESP-01S
• 80MHz RISC 32-bit CPU: Tensilica Diamond Standard 106Micro
• 32KiB RAM RAM: 32 KiB instruction, 80 KiB user data
• 1MB FLASH (~420KB for user data)
• WiFI 2.4GHz
• 220mA in peek power usage
• 3.3V / 250mA

Specifications of 🌞 solar cell

• Power: 0.7 W
• Output voltage: 5,5 V
• The dimensions of the plate: 95 x 95 x 3 mm

Specification of 🂠 TP4056

• Power supply voltage: (microUSB or IN connectors) from 4.5 V to 5.5 V
• Charging voltage: 4,2 V
• Maximum charging current: 1 A
• Module dimensions 26 x 18 mm

Specification of 🔋 battery

• Voltage: 1s 4.35v HV
• Capacity: 450 mAh
• Discharge rating: 80c/160c

Back to index