Author |
Message |
Topic: DHT22/AM2302 |
Alexander-Dan
Replies: 15
Views: 3513
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Forum: BASCOM-AVR Posted: Wed Jan 31, 2024 3:40 pm Subject: DHT22/AM2302 |
Is there delivery from this store in your country?
www.aliexpress.com |
Topic: DHT22/AM2302 |
Alexander-Dan
Replies: 15
Views: 3513
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Forum: BASCOM-AVR Posted: Wed Jan 31, 2024 8:55 am Subject: DHT22/AM2302 |
BME280 is about 15 EUR.
why so expensive?
I checked the price in the online store: "break-out" board + bme280 + 5V to 3V interface between the micro's I/O lines and the sensor
costs l ... |
Topic: DHT22/AM2302 |
Alexander-Dan
Replies: 15
Views: 3513
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Forum: BASCOM-AVR Posted: Tue Jan 30, 2024 7:34 pm Subject: DHT22/AM2302 |
The sensor DHT22 has the same dimensions but is much better in all parameters.
The exchange protocol is the same.
I highly recommend to apply it.
If minimum size requirements are very important ... |
Topic: Config SPI for shift registers |
Alexander-Dan
Replies: 4
Views: 1055
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Forum: Various Posted: Tue Jan 30, 2024 10:17 am Subject: Config SPI for shift registers |
Hello
I have used all versions of these chips for a long time.
You were asked the right questions. I would like to see part of the circuit diagram of your device, where the pins of the microcircui ... |
Topic: DHT22/AM2302 |
Alexander-Dan
Replies: 15
Views: 3513
|
Forum: BASCOM-AVR Posted: Tue Jan 30, 2024 3:00 am Subject: DHT22/AM2302 |
Hi
Reduce the resistor to 4k7 or 3k3.
The sensor dht11 is a bad choice:
- it doesn't change negative temperature as far as I remember.
- It reduces the humidity reading.
ps
I'm confused by y ... |
Topic: DHT22/AM2302 |
Alexander-Dan
Replies: 15
Views: 3513
|
Forum: BASCOM-AVR Posted: Mon Jan 29, 2024 7:18 pm Subject: DHT22/AM2302 |
Another question: Is the DHT22 sensor the same as the AM2301?
hello
no
DHT22 = AM2320
This sensor has different requirements for the polling frequency: you must pause for more than 2 seconds ... |
Topic: Bascom-8051 starts after a long delay |
Alexander-Dan
Replies: 9
Views: 3771
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Forum: BASCOM-8051 Posted: Tue Jan 23, 2024 9:58 am Subject: Bascom-8051 starts after a long delay |
Do you have an antivirus? maybe he doesn’t like direct work with the LPT and COM port?
Have you tried changing the launch properties and assigning the file to run as system administrator or setting t ... |
Topic: chinas the clone of the classic '51 |
Alexander-Dan
Replies: 36
Views: 7578
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Forum: BASCOM-8051 Posted: Thu Jan 18, 2024 11:48 am Subject: chinas the clone of the classic '51 |
So for now i implement the programming protocol and some DAT files along with support for the hardware.
Personally, I am completely satisfied with this.
Yes, new OS versions are a real problem ... |
Topic: chinas the clone of the classic '51 |
Alexander-Dan
Replies: 36
Views: 7578
|
Forum: BASCOM-8051 Posted: Wed Jan 17, 2024 12:00 pm Subject: chinas the clone of the classic '51 |
but the 8051 will never be like the AVR because the total difference in architecture.
Mark, I was referring to ide features and new commands.
For example, setting port parameters (8051 doesn't ha ... |
Topic: chinas the clone of the classic '51 |
Alexander-Dan
Replies: 36
Views: 7578
|
Forum: BASCOM-8051 Posted: Wed Jan 17, 2024 11:00 am Subject: chinas the clone of the classic '51 |
I think this series is very different from the "naive and simple" 8051. It may require big changes in the compiler algorithm.
And in the end there will be something in between the current BASCOM com ... |
Topic: chinas the clone of the classic '51 |
Alexander-Dan
Replies: 36
Views: 7578
|
Forum: BASCOM-8051 Posted: Wed Jan 17, 2024 10:49 am Subject: chinas the clone of the classic '51 |
i get back at it
By the way, a question: why can't bascom-51 make variables with more than 32 bytes?
Is it possible to increase this number, because the chips have 128 bytes of RAM and 128 byt ... |
Topic: chinas the clone of the classic '51 |
Alexander-Dan
Replies: 36
Views: 7578
|
Forum: BASCOM-8051 Posted: Wed Jan 17, 2024 10:23 am Subject: chinas the clone of the classic '51 |
Great
There are many chips in this family. https://www.stcmicro.com/datasheet/STC8H1K28_Features.pdf
But I chose these for myself:
STC8H1K17-36I-TSSOP20 RAM 1K, Flash 17K
STC8H1K28-3 ... |
Topic: chinas the clone of the classic '51 |
Alexander-Dan
Replies: 36
Views: 7578
|
Forum: BASCOM-8051 Posted: Wed Jan 17, 2024 10:13 am Subject: chinas the clone of the classic '51 |
I have already made this DAT file for you, it is in my examples, message above. I changed all the registers so that Bascom could use it.
This file contains a lot of additional information, for exampl ... |
Topic: chinas the clone of the classic '51 |
Alexander-Dan
Replies: 36
Views: 7578
|
Forum: BASCOM-8051 Posted: Wed Jan 17, 2024 9:53 am Subject: chinas the clone of the classic '51 |
please add also the links to the datasheets. and if possible the programming protocol.
Mark, I asked the Chinese agent to contact the manufacturer and ask him for this data. No answer yet. And all ot ... |
Topic: chinas the clone of the classic '51 |
Alexander-Dan
Replies: 36
Views: 7578
|
Forum: BASCOM-8051 Posted: Tue Jan 16, 2024 3:54 pm Subject: chinas the clone of the classic '51 |
Mark, please send me your address: tomorrow I will order delivery of several models.
https://www.stcmicro.com/stc/stc8h1k08.html
https://www.stcmicro.com/stc/stc8h1k28.html
https://www.stcmic ... |
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