Changes in 903aac2: multimeter

				Board-dat/IMS/IMS1027-dat/2025-02-03-17-33-01.png
			
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				Board-dat/IMS/IMS1027-dat/IMS1027-dat.md
			
          @@ -0,0 +1,26 @@

          +

          +# IMS1027-dat

          +

          +https://www.electrodragon.com/product/led-bar/

          +

          +legacy wiki page link - https://w.electrodragon.com/w/10-Segment_Red_LED_Bar

          +

          +## Specs 

          +

          +![](2025-02-03-17-33-01.png)

          +

          +- datasheet - [[KWL-R1025SB.pdf]]

          +

          +## demo video 

          +

          +https://www.youtube.com/watch?v=y1Bke3750WE

          +

          +## demo code 

          +

          +- [[LEDBarSample.rar]]

          +

          +

          +

          +## ref 

          +

          +- [[IMS1027]]

          \ No newline at end of file

				Board-dat/IMS/IMS1027-dat/KWL-R1025SB.pdf
			
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				Board-dat/IMS/IMS1027-dat/LEDBarSample.rar
			
          Binary files /dev/null and b/Board-dat/IMS/IMS1027-dat/LEDBarSample.rar differ

				Board-dat/MSP/2023-11-17-17-44-30.png
			
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				Board-dat/MSP/MSP1023-DAT.md
			
          @@ -1,23 +0,0 @@

          -

          -# MSP1023 dat 

          -

          -

          -amp for AC signal, but should also for DC signal 

          -

          -amplification ratio = first 10x X second trimpot tune 10X = 100X

          -

          -

          -https://www.electrodragon.com/product/lm358-operational-amplifier-signal-amplifier-module-arduino-supported/

          -

          -

          -## Board Size 

          -

          -![](2023-11-17-17-44-30.png)

          -

          -

          -## Legacy wiki page 

          -- https://w.electrodragon.com/w/LM358

          -

          -

          -## other ref 

          -- [[MSP1023]]

          \ No newline at end of file

				Board-dat/MSP/MSP1023-dat/2023-11-17-17-44-30.png
			
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				Board-dat/MSP/MSP1023-dat/MSP1023-DAT.md
			
          @@ -0,0 +1,23 @@

          +

          +# MSP1023 dat 

          +

          +

          +amp for AC signal, but should also for DC signal 

          +

          +amplification ratio = first 10x X second trimpot tune 10X = 100X

          +

          +

          +https://www.electrodragon.com/product/lm358-operational-amplifier-signal-amplifier-module-arduino-supported/

          +

          +

          +## Board Size 

          +

          +![](2023-11-17-17-44-30.png)

          +

          +

          +## Legacy wiki page 

          +- https://w.electrodragon.com/w/LM358

          +

          +

          +## other ref 

          +- [[MSP1023]]

          \ No newline at end of file

				Board-dat/MSP/MSP1035-dat/MSP1035-dat.md
			
          @@ -0,0 +1,10 @@

          +

          +# MSP1035-dat

          +

          +https://www.electrodragon.com/product/74hc595-breakout-shift-register/

          +

          +## ref 

          +

          +- [[74HC595-dat]]

          +

          +

				Board-dat/MSP/MSP1053-dat/MSP1053-dat.md
			
          @@ -0,0 +1,8 @@

          +

          +# MSP1053-dat

          +

          +https://www.electrodragon.com/product/74hc165-breakout-8-bit-sopi-serial-outparallel/

          +

          +## ref 

          +

          +- [[74HC165-dat]]

          \ No newline at end of file

				Board-dat/PTO/PTOS037-dat/PTOS037-dat.md
			
          @@ -0,0 +1,4 @@

          +

          +# PTOS037-dat

          +

          +- refer to page [[PTOS038-dat]]

          \ No newline at end of file

				Board-dat/PTO/PTOS038-dat/PTOS038-dat.md
			
          @@ -0,0 +1,38 @@

          +

          +# PTOS038-dat

          +

          +https://www.electrodragon.com/product/victory-digital-multimeter/

          +

          +

          +## Compare 

          +

          +### Common Same Measurement & Accuracy

          +

          +| Basic Function | Measurement Range                              | Basic Accuracy         |

          +|----------------|------------------------------------------------|------------------------|

          +| **DC Voltage** | 400mV / 4V / 40V / 400V / 600V                    | ±(0.5% + 4)            |

          +| **AC Voltage** | 400mV / 4V / 40V / 400V / 600V                    | ±(0.8% + 6)            |

          +| **Resistance** | 400Ω / 4kΩ / 40kΩ / 400kΩ / 4MΩ / 40MΩ             | ±(0.8% + 4)            |

          +| **Capacitance**| 40nF / 400nF / 4µF / 200µF                        | ±(3.5% + 8)            |

          +| **Frequency**  | 100Hz / 1kHz / 10kHz / 100kHz / 1MHz / 10MHz       | ±(0.5% + 4)            |

          +

          +---

          +

          +### Features & Special Functions

          +

          +| Category           | VC830                                           | VC921                                                      |

          +|--------------------|-------------------------------------------------|------------------------------------------------------------|

          +| **Basic Features** | - 3½-digit display, large screen<br>- ON/OFF connection test<br>- Manual range<br>- Compact size with comfortable hold<br>- Fully protective against high voltage spikes | - Frequency Test<br>- Auto range<br>- Compact palm size<br>- Protection cap |

          +| **Special Functions** | - Diode test √<br>- Continuity buzzer √<br>- Low voltage display √<br>- Input impedance: 10 MΩ<br>- Sampling Frequency: 3 times/s<br>- AC frequency response: 40–400 Hz<br>- Operation: Manual range<br>- Maximum Display: 1999<br>- Power: 9V Battery (6F22) (not included) | - Diode test √<br>- Continuity buzzer √<br>- Low voltage display √<br>- Data Hold √<br>- Frequency/Duty Cycle measurement √<br>- Unit symbol display √<br>- Shock protection √<br>- Input impedance: 10 MΩ<br>- Sampling Frequency: 3 times/s<br>- AC frequency response: 40–400 Hz<br>- Operation: Auto range<br>- Maximum Display: 3999<br>- Power supply: 3V coin battery (1.5V×2) |

          +

          +---

          +

          +### Dimensions & Physical Characteristics

          +

          +| Parameter             | VC830                           | VC921                                           |

          +|-----------------------|---------------------------------|-------------------------------------------------|

          +| **Product Dimensions**| 145 × 85 × 30 mm                | 117 × 80 × 19 mm                                |

          +| **Color**             | Yellow + Black                  | Dark gray (body)                                |

          +| **LCD Size**          | 57 × 33 mm                      | –                                               |

          +| **Weight**            | –                               | 108 g (with battery)                            |

          +| **Packaging**         | –                               | Standard inner packing box<br>Packaging size: 396 × 312 × 433 mm |

				Chip-dat/FTDI-dat/FTDI-dat.md
			
          @@ -8,6 +8,8 @@

           ## FT311d 

          +- use [[USB1014-dat]] for an alternative soltuion

          +

           ### demo 

           - [FT311D Android Host IC, Controlled Robot Arm Demo](https://www.youtube.com/watch?v=w9sEITQuTwA)

				weekly-dat/2025-04-05-dat/2025-04-05-dat.md
			
          @@ -1,23 +0,0 @@

          -

          -# 2025-04-05-dat

          -

          -This a weekly update newsletter, to briefly tell you whats new and whats fun we are working at, hope you like

          -

          -## New Boards

          -

          -

          -

          -## Development, Documents Updates

          -

          -- Batch Brogramming for ESP8266 modules, use [[OPM1095-dat]] and [[DPR1120-dat]] - https://t.me/electrodragon3/331 - updated at page [[ESP8266-dat]]

          -

          -

          -## Dissusion, Feedback, To-do

          -

          -- [[OPM1095-dat]] V2 with voltage supervisor

          -

          -- new comments add for board [[NWI1126-dat]], [url here](https://www.electrodragon.com/product/esp-led-strip-board/), this could be a [[mosfet-dat]] related problem. 

          -

          -## Interesting Readings, News

          -

          -

				weekly-dat/2025-04-06-dat/2025-04-06-dat.md
			
          @@ -0,0 +1,24 @@

          +

          +# 2025-04-05-dat

          +

          +This a weekly update newsletter, to briefly tell you whats new and whats fun we are working at, hope you like

          +

          +## New Boards

          +

          +

          +

          +## Development, Documents Updates

          +

          +- Batch Brogramming for ESP8266 modules, use [[OPM1095-dat]] and [[DPR1120-dat]] - https://t.me/electrodragon3/331 - updated at page [[ESP8266-dat]]

          +

          +- add knowledge how to use a p-mosfet to control power distribution (USB input, battery, etc) at page [[Power-distribution-dat]]

          +

          +## Dissusion, Feedback, To-do

          +

          +- [[OPM1095-dat]] V2 with voltage supervisor

          +

          +- new comments add for board [[NWI1126-dat]], [url here](https://www.electrodragon.com/product/esp-led-strip-board/), this could be a [[mosfet-dat]] related problem. 

          +

          +## Interesting Readings, News

          +

          +

				weekly-dat/weekly-dat.md
			
          @@ -1,11 +1,11 @@

           # weekly-dat

          -| portal             | date          |

          -| ------------------ | ------------- |

          -| [[2025-04-05-dat]] | Jan.20~Feb.02 |

          -| [[2025-03-dat]]    | Jan. 13~19    |

          -| [[2025-02-dat]]    | Jan. 6~12     |

          +| portal             | start   | end    |

          +| ------------------ | ------- | ------ |

          +| [[2025-04-06-dat]] | Jan.20  | Feb.09 |

          +| [[2025-03-dat]]    | Jan. 13 | 19     |

          +| [[2025-02-dat]]    | Jan. 6  | 12     |

...	...	@@ -0,0 +1,26 @@
	1	+
	2	+# IMS1027-dat
	3	+
	4	+https://www.electrodragon.com/product/led-bar/
	5	+
	6	+legacy wiki page link - https://w.electrodragon.com/w/10-Segment_Red_LED_Bar
	7	+
	8	+## Specs
	9	+
	10	+![](2025-02-03-17-33-01.png)
	11	+
	12	+- datasheet - [[KWL-R1025SB.pdf]]
	13	+
	14	+## demo video
	15	+
	16	+https://www.youtube.com/watch?v=y1Bke3750WE
	17	+
	18	+## demo code
	19	+
	20	+- [[LEDBarSample.rar]]
	21	+
	22	+
	23	+
	24	+## ref
	25	+
	26	+- [[IMS1027]]
...	...	\ No newline at end of file

...	...	@@ -1,23 +0,0 @@
1		-
2		-# MSP1023 dat
3		-
4		-
5		-amp for AC signal, but should also for DC signal
6		-
7		-amplification ratio = first 10x X second trimpot tune 10X = 100X
8		-
9		-
10		-https://www.electrodragon.com/product/lm358-operational-amplifier-signal-amplifier-module-arduino-supported/
11		-
12		-
13		-## Board Size
14		-
15		-![](2023-11-17-17-44-30.png)
16		-
17		-
18		-## Legacy wiki page
19		-- https://w.electrodragon.com/w/LM358
20		-
21		-
22		-## other ref
23		-- [[MSP1023]]
...	...	\ No newline at end of file

...	...	@@ -0,0 +1,23 @@
	1	+
	2	+# MSP1023 dat
	3	+
	4	+
	5	+amp for AC signal, but should also for DC signal
	6	+
	7	+amplification ratio = first 10x X second trimpot tune 10X = 100X
	8	+
	9	+
	10	+https://www.electrodragon.com/product/lm358-operational-amplifier-signal-amplifier-module-arduino-supported/
	11	+
	12	+
	13	+## Board Size
	14	+
	15	+![](2023-11-17-17-44-30.png)
	16	+
	17	+
	18	+## Legacy wiki page
	19	+- https://w.electrodragon.com/w/LM358
	20	+
	21	+
	22	+## other ref
	23	+- [[MSP1023]]
...	...	\ No newline at end of file

...	...	@@ -0,0 +1,10 @@
	1	+
	2	+# MSP1035-dat
	3	+
	4	+https://www.electrodragon.com/product/74hc595-breakout-shift-register/
	5	+
	6	+## ref
	7	+
	8	+- [[74HC595-dat]]
	9	+
	10	+

...	...	@@ -0,0 +1,8 @@
	1	+
	2	+# MSP1053-dat
	3	+
	4	+https://www.electrodragon.com/product/74hc165-breakout-8-bit-sopi-serial-outparallel/
	5	+
	6	+## ref
	7	+
	8	+- [[74HC165-dat]]
...	...	\ No newline at end of file

...	...	@@ -0,0 +1,4 @@
	1	+
	2	+# PTOS037-dat
	3	+
	4	+- refer to page [[PTOS038-dat]]
...	...	\ No newline at end of file

...	...	@@ -0,0 +1,38 @@
	1	+
	2	+# PTOS038-dat
	3	+
	4	+https://www.electrodragon.com/product/victory-digital-multimeter/
	5	+
	6	+
	7	+## Compare
	8	+
	9	+### Common Same Measurement & Accuracy
	10	+
	11	+\| Basic Function \| Measurement Range \| Basic Accuracy \|
	12	+\|----------------\|------------------------------------------------\|------------------------\|
	13	+\| DC Voltage \| 400mV / 4V / 40V / 400V / 600V \| ±(0.5% + 4) \|
	14	+\| AC Voltage \| 400mV / 4V / 40V / 400V / 600V \| ±(0.8% + 6) \|
	15	+\| Resistance \| 400Ω / 4kΩ / 40kΩ / 400kΩ / 4MΩ / 40MΩ \| ±(0.8% + 4) \|
	16	+\| Capacitance\| 40nF / 400nF / 4µF / 200µF \| ±(3.5% + 8) \|
	17	+\| Frequency \| 100Hz / 1kHz / 10kHz / 100kHz / 1MHz / 10MHz \| ±(0.5% + 4) \|
	18	+
	19	+---
	20	+
	21	+### Features & Special Functions
	22	+
	23	+\| Category \| VC830 \| VC921 \|
	24	+\|--------------------\|-------------------------------------------------\|------------------------------------------------------------\|
	25	+\| Basic Features \| - 3½-digit display, large screen<br>- ON/OFF connection test<br>- Manual range<br>- Compact size with comfortable hold<br>- Fully protective against high voltage spikes \| - Frequency Test<br>- Auto range<br>- Compact palm size<br>- Protection cap \|
	26	+\| Special Functions \| - Diode test √<br>- Continuity buzzer √<br>- Low voltage display √<br>- Input impedance: 10 MΩ<br>- Sampling Frequency: 3 times/s<br>- AC frequency response: 40–400 Hz<br>- Operation: Manual range<br>- Maximum Display: 1999<br>- Power: 9V Battery (6F22) (not included) \| - Diode test √<br>- Continuity buzzer √<br>- Low voltage display √<br>- Data Hold √<br>- Frequency/Duty Cycle measurement √<br>- Unit symbol display √<br>- Shock protection √<br>- Input impedance: 10 MΩ<br>- Sampling Frequency: 3 times/s<br>- AC frequency response: 40–400 Hz<br>- Operation: Auto range<br>- Maximum Display: 3999<br>- Power supply: 3V coin battery (1.5V×2) \|
	27	+
	28	+---
	29	+
	30	+### Dimensions & Physical Characteristics
	31	+
	32	+\| Parameter \| VC830 \| VC921 \|
	33	+\|-----------------------\|---------------------------------\|-------------------------------------------------\|
	34	+\| Product Dimensions\| 145 × 85 × 30 mm \| 117 × 80 × 19 mm \|
	35	+\| Color \| Yellow + Black \| Dark gray (body) \|
	36	+\| LCD Size \| 57 × 33 mm \| – \|
	37	+\| Weight \| – \| 108 g (with battery) \|
	38	+\| Packaging \| – \| Standard inner packing box<br>Packaging size: 396 × 312 × 433 mm \|

...	...	@@ -8,6 +8,8 @@
8	8
9	9	## FT311d
10	10
	11	+- use [[USB1014-dat]] for an alternative soltuion
	12	+
11	13	### demo
12	14
13	15	- [FT311D Android Host IC, Controlled Robot Arm Demo](https://www.youtube.com/watch?v=w9sEITQuTwA)

...	...	@@ -1,23 +0,0 @@
1		-
2		-# 2025-04-05-dat
3		-
4		-This a weekly update newsletter, to briefly tell you whats new and whats fun we are working at, hope you like
5		-
6		-## New Boards
7		-
8		-
9		-
10		-## Development, Documents Updates
11		-
12		-- Batch Brogramming for ESP8266 modules, use [[OPM1095-dat]] and [[DPR1120-dat]] - https://t.me/electrodragon3/331 - updated at page [[ESP8266-dat]]
13		-
14		-
15		-## Dissusion, Feedback, To-do
16		-
17		-- [[OPM1095-dat]] V2 with voltage supervisor
18		-
19		-- new comments add for board [[NWI1126-dat]], [url here](https://www.electrodragon.com/product/esp-led-strip-board/), this could be a [[mosfet-dat]] related problem.
20		-
21		-## Interesting Readings, News
22		-
23		-

...	...	@@ -0,0 +1,24 @@
	1	+
	2	+# 2025-04-05-dat
	3	+
	4	+This a weekly update newsletter, to briefly tell you whats new and whats fun we are working at, hope you like
	5	+
	6	+## New Boards
	7	+
	8	+
	9	+
	10	+## Development, Documents Updates
	11	+
	12	+- Batch Brogramming for ESP8266 modules, use [[OPM1095-dat]] and [[DPR1120-dat]] - https://t.me/electrodragon3/331 - updated at page [[ESP8266-dat]]
	13	+
	14	+- add knowledge how to use a p-mosfet to control power distribution (USB input, battery, etc) at page [[Power-distribution-dat]]
	15	+
	16	+## Dissusion, Feedback, To-do
	17	+
	18	+- [[OPM1095-dat]] V2 with voltage supervisor
	19	+
	20	+- new comments add for board [[NWI1126-dat]], [url here](https://www.electrodragon.com/product/esp-led-strip-board/), this could be a [[mosfet-dat]] related problem.
	21	+
	22	+## Interesting Readings, News
	23	+
	24	+

...	...	@@ -1,11 +1,11 @@
1	1
2	2	# weekly-dat
3	3
4		-\| portal \| date \|
5		-\| ------------------ \| ------------- \|
6		-\| [[2025-04-05-dat]] \| Jan.20~Feb.02 \|
7		-\| [[2025-03-dat]] \| Jan. 13~19 \|
8		-\| [[2025-02-dat]] \| Jan. 6~12 \|
	4	+\| portal \| start \| end \|
	5	+\| ------------------ \| ------- \| ------ \|
	6	+\| [[2025-04-06-dat]] \| Jan.20 \| Feb.09 \|
	7	+\| [[2025-03-dat]] \| Jan. 13 \| 19 \|
	8	+\| [[2025-02-dat]] \| Jan. 6 \| 12 \|
9	9
10	10
11	11