Artikel
Voltage Tracker for Oscilloscope
Slow-timebase measurements on your oscilloscope using an Arduino shield
Suppose you want to measure a slowly-varying voltage from a sensor, or perhaps plot the discharge curve of a battery. Is it really necessary to sit there and note down a reading from the multimeter every so many seconds or minutes? It is less tedious and much more elegant to use this Arduino-based unit connected to your oscilloscope.Two questions motivated Kurt Schuster at the beginning of this project: ‘is my battery any good?’ and ‘is this charger charging my battery correctly?’.
Gerber bestand
De PCB bij dit artikel is als Gerber file beschikbaar gesteld. Elektor Members kunnen exclusief deze files gratis downloaden en gebruiken om de PCB zelf af te drukken met geschikte apparatuur óf de Gerber te laten drukken via een dienstverlener.
Elektor kan u bijvoorbeeld de PCB Service van onze partner Eurocircuits van harte aanbevelen of AISLER.
Het gebruik van onze Gerber files is vrijgegeven onder een Creative Commons- licentie. Creative Commons biedt auteurs, wetenschappers en andere creatieve makers de vrijheid om op een flexibele manier met hun auteursrechten om te gaan.
PCB
Onderdelenlijst
Component List
Resistors
R1,R5 = 1kOhm 5%, 0.25W
R2,R3,R4 = 5.11kOhm 1%, 0.25W, metal film
Capacitors
C1–C7,C9,C11 = 100nF 50V, X7R, 0.2’’ pitch
C8,C10,C12 = 100µF 25V, radial, 0.1’’ pitch
Semiconductors
D1,D2 = 1N4148
LED1 = red, 3mm
IC1 = DAC0808LCN, DIP16
IC2 = MCP601-I/P, DIP8
IC3 = ICL7660CPAZ, DIP8
Miscellaneous
K1, K2 = 8-pin pinheader
K3 = 2-pin pinheader
K7,K8 = BNC socket, PCB mount, right angled
K5 = 6-pin pinheader
K6 = 36-pin (2x18) pinheader
S1–S4 = pushbutton, 6x6 mm, PCB mount
IC sockets for IC1,IC2,IC3
Two coax cables with BNC plugs
PCB # 150422-1 from Elektor Store
Arduino Mega, # 140566-93 from Elektor Store
Caution: all pinheaders to be mounted at PCB underside
Resistors
R1,R5 = 1kOhm 5%, 0.25W
R2,R3,R4 = 5.11kOhm 1%, 0.25W, metal film
Capacitors
C1–C7,C9,C11 = 100nF 50V, X7R, 0.2’’ pitch
C8,C10,C12 = 100µF 25V, radial, 0.1’’ pitch
Semiconductors
D1,D2 = 1N4148
LED1 = red, 3mm
IC1 = DAC0808LCN, DIP16
IC2 = MCP601-I/P, DIP8
IC3 = ICL7660CPAZ, DIP8
Miscellaneous
K1, K2 = 8-pin pinheader
K3 = 2-pin pinheader
K7,K8 = BNC socket, PCB mount, right angled
K5 = 6-pin pinheader
K6 = 36-pin (2x18) pinheader
S1–S4 = pushbutton, 6x6 mm, PCB mount
IC sockets for IC1,IC2,IC3
Two coax cables with BNC plugs
PCB # 150422-1 from Elektor Store
Arduino Mega, # 140566-93 from Elektor Store
Caution: all pinheaders to be mounted at PCB underside
Discussie (0 opmerking(en))