Ciro Santilli
OurBigBook.com2022-10 ELEGOO Upgraded Electronics Fun Kit www.elegoo.com/products/elegoo-electronics-fun-kits-4-versions Manuals:
- Elegoo Breadboard power supply module MB‐V2:
- Input voltage: 6.5-9v (DC) via 5.5mm x 2.1mm plug
- Output voltage: 3.3V/5v
- Maximum output current: 700 mA
TODO center positive or center negative?Does not come with AC adapter, getting this one: www.amazon.co.uk/dp/B08ZN476FW output: DC 9V 1A Power Supply Adapter, Plug 5.5mm x 2.1mm, Center Positive,B rand: Security-01, input: AC 100-240V 50/60 Hz, Cable length: 1.8mParts list from the ZIP: - resistors:
- 10x each:
- 10
- 100
- 330
- 2k
- 5.1k
- 10k
- 100k
- 1M
- 30x 220
- 10x each:
- 1n4007 General Purpose Rectifier
- 22pf 104 Ceramic Capacitor
- 4N35 optocoupler
- 74HC595 8-bit serial-in, serial or parallel-out shift register with output latches; 3-state
- Active buzzer
- Buttons
- CDS-55 Photoresistor
- Electrolytic Capacitor
- Focusens MF52D 103f 3950 thermistor. Beta value 25/50 Celcius: 3950. R_25: I measured 9.61 k Ohms. The number 103 they document as:These descriptions are weird, but ChatGPT has the theory that the first two digits are actual values, and the last is multiplier, so which makes 10k.
- digit 1: code of dimension
- digit 2: rated resistance
- digit 3: fills with its precision symbol
but I have no idea how that maps to 10 k Ohms. - PN2222 General Purpose Transistor
- Passive buzzer
- 3386p Bourns Precision Potentiometer - 1 103T: from 0 to 10k Ohms, measured with multimeter. According to the manual the "103" mean 10 k oms, which is consistent with our measurement. "P 103" is etched into the part.
- LEDs:
- White LED 10x
- Kingbright RGB LEDs 10x red, green, yellow, blue:
- maximum Continuous Forward Current: 30 mA for read and blue, 25 mA for green
- 303025
- under 20 mA
- Forward Voltage: 2.0 V typical, 2.5 V max
20 mA appears to be the typical operation. So with the 2.0 V drop on 5 V power we want a resistor such that:for the max 50 mA we would instead have 60 Ohms