Electrodragon Forum » Search » user:chao post:true

ED20 GPS Tracker Board Questions ...

We used with IP address, it is working fine. Not tired with domain name, sorry not sure about this ..

ed20 gps chao •  21 hours ago • Last reply from chao
5

ED20 GPS Tracker Board Questions ...

Short connect boot pin to ground should work, please double check if you need.


Yes, good luck with the coding work, we can only provide very limit help on this. But any hardware questions please always let us know.


Thanks. Best regards,

ed20 gps chao •  2019-09-13 • Last reply from chao
5

Atmega328p LoRa Low power use!

Hi,


We are not that good at code, and can only provide simple demo for it. For the CAD mode, we are not sure about it, please try by yourself. SPI Flash is for storing the mass data.

custom items testing chao •  2019-09-09 • Last reply from chao
16

ED20 GPS Tracker Board Questions ...

Hi,


The question is to elimate the push button action right? You can find the boot pin, and solder it to ground, then will auto start when power up. (also can de-solder the boot key, and short connect the boot

ed20 gps chao •  2019-09-09 • Last reply from chao
5

Atmega328p LoRa Low power use!

Hi,


Yes, demo code in our bitbucket, will email you the credential.

custom items testing chao •  2019-02-26 • Last reply from chao
16

Atmega328p LoRa Low power use!

Conclusions:

Power LED about

custom items testing chao •  2019-01-30 • Last reply from chao
16

Atmega328p LoRa Low power use!

Hello all,


The flash also need to be iniateed well, otherwise if only power but not operate, will cost up to 700uA

custom items testing chao •  2019-01-18 • Last reply from chao
16

Inquiry - ESP LED Strip Board

Hi,


1 and 2 can be done by software, we only work on hardware, can not help you with this, it is simple, should be easy to done it.


3. Yes, each channel of RGB are connectd to module each IOs, you can control each IO to do so, also very simple controlling

forum chao •  2018-10-26 • Last reply from andiedini
2

Atmega328p LoRa Low power use!

Hi,


What is CAD mode? What we can do on hardware to help on this? Please let mek now, thanks.


power LED no problem, this is a demo board, we can just do not place the led during production. b

custom items testing chao •  2018-09-28 • Last reply from chao
16

Problems with Energy Monitor Shield R2.1

Should only clamp one wire of the AC power wires, not two, please notice, otherwise will be no output. You can google some images to get a clear understanding.

testing ems energy monitor uno chao •  2018-06-25 • Last reply from chao
6

Problems with Energy Monitor Shield R2.1

Good to know getting better, you can try the LCD 5110 or SPI LCD onto the shield, and use external power supply. It is much more easy to monitor. 


We tested this with a hair dryer, about 2-10A, but the output ranging is not a lot, probably need more code work. If you have any su

testing ems energy monitor uno chao •  2018-06-25 • Last reply from chao
6

Problems with Energy Monitor Shield R2.1

Hi,

The 100A sensor has too large range normally used for big devices or buiding, if the input is a few amps it won't change a lot, maybe you can try the 30A version. 


Also make sure all the settings in the sketch is correct, make sure the setup is for 100a not 30a, you ca

testing ems energy monitor uno chao •  2018-06-22 • Last reply from chao
6

esp-prog programming esp-01

Hi,


We are not desginer of this, also not good at this :( Also only resell this. 

Please post the question to espressif forum here, https://bbs.espressif.com/ or maybe their github 

esp8266 chao •  2018-06-18 • Last reply from chao
1

Loraduino schematic, not allowed to access from wiki?

Hi, sorry this forum don't have notice function. 


Sorry for the wiki problem, if you have any help need you can put on here or write us email. We do best to help!Thanks.

loraduino wiki chao •  2018-04-25 • Last reply from pcbindex
4

Atmega328p LoRa Low power use!

If I compare correct, pro mini use regualtor MIC2505, which quiescent current is 5uA, but only 150mA delivery, the upgrade version MIC2519 is better 8uA/500mA. Our current use is AP2112 but 55uA quiescent and output up to 500mA. Which also add this to test later.

custom items testing chao •  2018-04-22 • Last reply from chao
16

Loraduino schematic, not allowed to access from wiki?

If not received the email, please drop email to info@electrodragon.com.

loraduino wiki chao •  2018-04-20 • Last reply from pcbindex
4

Loraduino schematic, not allowed to access from wiki?

Hi, please check the tracking info email, it embedds with the wiki login info for 2-3 months, then you can view all wiki info. 


Some wiki info is we collected but maybe not authroized (we collected a lot), to avoid troubles and also copy, we do in this way. 


Th

loraduino wiki chao •  2018-04-20 • Last reply from pcbindex
4

Atmega328p LoRa Low power use!

We will keep doing this test, with lowpower library too.  

Any suggesttions. or test need please let us know we will do. Any updates will update this thread and also on wiki.


custom items testing chao •  2018-04-20 • Last reply from chao
16

Atmega328p LoRa Low power use!

we have just done some test today, result is here. 


http://www.electrodragon.com/w/Low_Power


On transmitter mode, should be 9.5mA regular standby, remove all extras, can reduce about 4 mA maxium.

custom items testing chao •  2018-04-19 • Last reply from chao
16

Problem on atm328p Lora board

Hi, the didoe should be 1N5819, up to 1A. Good to know it is fixed. 


We will work for the low power, will see what we can do best to low the power.

forum testing chao •  2018-04-19 • Last reply from charlotte
2
Log in
Information Bar
Hello World! Reclamation land, waiting for the mining of tags.