5V dark sensing switch

12V dark activated switch

The red light on my Epson L110 printer started blinking. Printer status monitor indicated "It is time to reset the ink level". Tried pressing the ink button for a couple of seconds didn't work. Neither are the inks are abnormally low.

Here's the simple fix:

1. Power off the printer.
2. Put 1 bond paper on the loading tray.
3. Press both Power Button and paper feed or ink button 15sec.
4. After 15sec release power button and paper feed or ink button.
5. Paper feed or ink button with Orange light will steady while the power button will be blinking.
6. Now press once the paper feed or ink button with orange light and it will print a test print.

Ready for the solar PV upgrade:

DIY Combiner box + 15A circuit breaker for disconnect switch

Miniture circuits breakers + toggle switch from SCC to the load and the battery

Solar charging station done.

5W Solar Panel + 12V 7.2Ah battery + voltage regulators.

Schematic for voltage regulators:

Replication of 555 based solar charge controller

Inspired by this 555 timer based solar charge controller

Variable power supply

the schematic diagram:

GELL CELL BATTERY CHARGER

taken from Talking Electronics

added a selector switch for the 3 current settings 300mA, 650mA and 1300mA

making use of an old hp printer's power adapter 15V 530mA

all is fine except for one small glitch: the LED wont lite up.

special thanks to the following: electronicsNmore, wtam69

From Joule Thief to Solar Night Lights

the schematic diagram:

the solar charging station:

using a small 6V solar panel:

led lights turns on when night sets in:

inspired by: /MrFreddiew1/

Solar recharging station

using 4 solar garden lights

Simple dark activated night light

the schematic diagram:

Replication of Slayer Circuit

Schematic diagram:

My replication:

DIY Soda Can Stove

Inspired by this

My own soda can stove

My ever handy tool for my DIY projects

DIY Wood Gas Stove

My wood gas stove

testing

Joule Ringer Replications

Lynx's air coil Joule ringer

my joule ringer

Xee's joule ringer

my replication