Mais aussi Level Shifter pour faire passer les signaux en 5v en 3.3v :
LM317 :
Output voltage from 1.2V to 37V.
Output voltage tolerance of 1%.
Output current up to 1.5A.
Calcul de résistances pour contrôler le voltage : http://www.simple-electronics.com/2010/11/lm317.html
Exemple de régulation : http://electroblog.cf/lm317-voltage-regulator/
Carte 40volts DC :
Mini Carte 27 volts DC :
Specifications:
- Input voltage:4.5V-27V
- Output voltage:1.5V-16V
- Output current:Rated current is 2A,maximum 3A(Additional heatsink is required)
- Work temperature:-20 ℃ – +85 ℃
- dimension:22mm*17mm*4mm(L*W*G)
DC 5V to 3.3V Step-Down Power Supply Module AMS1117-3.3 800MA :
1: input: DC 4.5 V-7 V (input voltage must be more than to output voltage high 1 V above.)
2: output: 3.3 V, 800 mA (load current can’t more than 800 mA)
3 : PCB size:8.6* 12.3 mm
AndroLogiciels 
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