Timeline for Unit buffer op-amp fails with my sensor module signal
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| Jul 26, 2022 at 17:41 | comment | added | Scott Seidman | Note that TWO methods of measuring this (the sensor with no buffer and the sensor with the buffer) indicate that the voltage is near 3.3V. Perhaps the issue isn't with your buffer. | |
| Jul 26, 2022 at 17:18 | history | edited | ocrdu | CC BY-SA 4.0 |
deleted 16 characters in body; edited title
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| Jul 26, 2022 at 14:07 | comment | added | CommunityBot | Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. | |
| Jul 26, 2022 at 13:24 | answer | added | D.A.S. | timeline score: 0 | |
| Jul 26, 2022 at 13:07 | comment | added | sony piplode | you mearn real physical photo of connection? | |
| Jul 26, 2022 at 13:02 | comment | added | sony piplode | regarding sensor:: i have purchased it from local market. board allows me to connect ph sensor to it and give output via 2 wire. positive and ground. i do not have any offical data on sensor. | |
| Jul 26, 2022 at 13:00 | comment | added | Chris Knudsen | ...a real-world diagram showing your sensor, opamp, power supply and arduino connections, with pin numbers (both arduino and opamp)... Sensor datasheet as well. | |
| Jul 26, 2022 at 12:27 | comment | added | sony piplode | here is circuit diagram dropbox.com/s/lxzzph1ql8c8bvz/… | |
| Jul 26, 2022 at 12:06 | comment | added | Scott Seidman | Please show a diagram and describe how the op amp is powered. | |
| Jul 26, 2022 at 11:11 | review | Close votes | |||
| Aug 22, 2022 at 3:05 | |||||
| Jul 26, 2022 at 11:07 | comment | added | sony piplode | yes , i did connected both ground and also without . when i connect ground of arduino with board ground. and measure output of board (which was 400 milivolt before connecting ground of two ) multimeter still gives me 3.3 volts. i dont get it why it turn 400 milivolt to 3.3 by just connecting ground. | |
| Jul 26, 2022 at 11:00 | comment | added | WhatRoughBeast | Have you connected the grounds of the two boards together? | |
| S Jul 26, 2022 at 10:53 | review | First questions | |||
| Jul 26, 2022 at 14:07 | |||||
| S Jul 26, 2022 at 10:53 | history | asked | sony piplode | CC BY-SA 4.0 |
