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Xinyuan-LilyGO / LilyGo-T-Call-SIM800

https://www.aliexpress.com/item/33045221960.html
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Suggestion for next revision #13

Closed nikil511 closed 4 years ago

nikil511 commented 5 years ago

Dear TTGO team, Here is a summary of my bugs and enhancements list:

Once your apply the above, you have created a great product and I will be your best customer :-)

slavino commented 5 years ago

Let me add my two cents.

The SIM808 (or other GPS/GNSS capable chip) could add positioning functionality and adding SD card slot could make it even more usable out of the box.

nikil511 commented 5 years ago

Or even better SIM7000 :-)

toomasz commented 5 years ago

SIM7000 would be awesome

Skipper-is commented 5 years ago

+1 for SIM7000, With 2G being switched off around the world, LTE would be a big bonus!

lewisxhe commented 5 years ago

@nikil511 Ok, thank you for your suggestion, we will fix it in the next version, SIM7000 board we will try, if you have any requirements on the sim7000 hardware you can ask us.

slavino commented 5 years ago

@nikil511 Ok, thank you for your suggestion, we will fix it in the next version, SIM7000 board we will try, if you have any requirements on the sim7000 hardware you can ask us.

emigbur commented 5 years ago

HI, Very good idea, your product, I already buy one, my idea was to be used with solar panel, can you please provide an easy way step by step, to make the fix on actual versión ? Regards.

vshymanskyy commented 5 years ago

SIM7000G version is on the way! ;)

nikil511 commented 5 years ago

Great news!

Please do not use IP5306 again!

When battery is empty it shutdown to protect it but when battery is charged (via solar) it requires a button key press to start. It is unusable for unattended deployment.

Check AXP192 seems more sofisticated and has multiple regulator outputs.

Also please consider adding a 5v solar compatible input.

On Sun, Sep 29, 2019, 13:53 Volodymyr Shymanskyy notifications@github.com wrote:

SIM7000 version is on the way! ;)

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/Xinyuan-LilyGO/TTGO-T-Call/issues/13?email_source=notifications&email_token=AAHB4OUB2ZTSN3K5UUGQQI3QMCCMLA5CNFSM4IJP772KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD73QRII#issuecomment-536283297, or mute the thread https://github.com/notifications/unsubscribe-auth/AAHB4OVWS3HUULSLILDSNFDQMCCMLANCNFSM4IJP772A .

nikil511 commented 5 years ago

Also if you add an external RTC, like tfox, it would be very useful. And maybe you could connect the RTC alarm to IP5306 KEY (but needs to go from low to high)

Or maybe take advantage of the sim7000 RTC and battery monitoring by connecting it directly to the battery with an optional jumper.

On Sun, Sep 29, 2019, 14:29 Manolis Nikiforakis nikil511@gmail.com wrote:

Great news!

Please do not use IP5306 again!

When battery is empty it shutdown to protect it but when battery is charged (via solar) it requires a button key press to start. It is unusable for unattended deployment.

Check AXP192 seems more sofisticated and has multiple regulator outputs.

Also please consider adding a 5v solar compatible input.

On Sun, Sep 29, 2019, 13:53 Volodymyr Shymanskyy notifications@github.com wrote:

SIM7000 version is on the way! ;)

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/Xinyuan-LilyGO/TTGO-T-Call/issues/13?email_source=notifications&email_token=AAHB4OUB2ZTSN3K5UUGQQI3QMCCMLA5CNFSM4IJP772KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD73QRII#issuecomment-536283297, or mute the thread https://github.com/notifications/unsubscribe-auth/AAHB4OVWS3HUULSLILDSNFDQMCCMLANCNFSM4IJP772A .

eueduardo3 commented 5 years ago

Better than the SIM7000G would be to use the SIM7600SA, so yes it would be awesome. and yes the idea of ​​placing an SD card slot RTC would also be sensational

crash007 commented 5 years ago

5v solar compatible input would be great.

Den sön 29 sep. 2019 13:29Manolis Nikiforakis notifications@github.com skrev:

Great news!

Please do not use IP5306 again!

When battery is empty it shutdown to protect it but when battery is charged (via solar) it requires a button key press to start. It is unusable for unattended deployment.

Check AXP192 seems more sofisticated and has multiple regulator outputs.

Also please consider adding a 5v solar compatible input.

On Sun, Sep 29, 2019, 13:53 Volodymyr Shymanskyy <notifications@github.com

wrote:

SIM7000 version is on the way! ;)

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub < https://github.com/Xinyuan-LilyGO/TTGO-T-Call/issues/13?email_source=notifications&email_token=AAHB4OUB2ZTSN3K5UUGQQI3QMCCMLA5CNFSM4IJP772KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD73QRII#issuecomment-536283297 , or mute the thread < https://github.com/notifications/unsubscribe-auth/AAHB4OVWS3HUULSLILDSNFDQMCCMLANCNFSM4IJP772A

.

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/Xinyuan-LilyGO/TTGO-T-Call/issues/13?email_source=notifications&email_token=ACWEUMZ2LBCBEZJ67OCXM5TQMCGTNA5CNFSM4IJP772KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD73RSTA#issuecomment-536287564, or mute the thread https://github.com/notifications/unsubscribe-auth/ACWEUM32F5XVO4BUL6JYUT3QMCGTNANCNFSM4IJP772A .

Krezalis commented 5 years ago

Place for max485 transceiver mapped to usart2

Krezalis commented 5 years ago

Place for sim chip (VQFN-8)

Krezalis commented 5 years ago

Holes for i2c oled 128*64 (VCC, GND, SCL, SDA), pads for pull-up resistors

lewisxhe commented 5 years ago

Please click here to learn about the new version. https://github.com/Xinyuan-LilyGO/T-SIM/issues/1#issue-512775074 @nikil511 @vshymanskyy @slavino @toomasz @Krezalis

Zoltant7 commented 4 years ago

Hi ! One question the 5V pin is the output from the USB or it's an input 5v pin ?? I don't have micro USB C , so i need a workaround, external power, and i suppose to use the rx tx over the FT232 ! Thanks

nikil511 commented 4 years ago

Yes, you can give 5v to that pin tcall will work fine. Use tx rx and gpio0 for flashing.

On Thu, Dec 5, 2019, 21:52 Zoltant7 notifications@github.com wrote:

Hi ! One question the 5V pin is the output from the USB or it's an input 5v pin ?? I don't have micro USB C , so i need a workaround, external power, and i suppose to use the rx tx thru the FT232 ! Thanks

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/Xinyuan-LilyGO/TTGO-T-Call/issues/13?email_source=notifications&email_token=AAHB4OVYV5DEJQ2NFOMCKE3QXFLXJA5CNFSM4IJP772KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEGB5XCA#issuecomment-562289544, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAHB4OVQHP5QZMH2BVZPKCDQXFLXJANCNFSM4IJP772A .

Zoltant7 commented 4 years ago

Thanks for the answer my friend! I couldn't find any scheme to it anywhere!

Gary-cat commented 4 years ago

Let me know when you get this version working I will buy a lot of units for my remote install applications

Zoltant7 commented 4 years ago

Yes, it's really frustrating when the battery runs out of juice, this would require some sort of power on reset device when the charging reaches some safe levels again let's say above 3.3v somewhere around 3.5v. I'm using right now with plain esp32 an 5v solar panel(in reality the voltage is above 6~8 V on sunny day) so a noisy buck boost converter, after that a linear step down converter, from that to tpu4xxx charger module. (this is a must because the tpu can handle voltages only to 5.5V otherwise it kicks the bucket) This was a fire and forget project so the part numbers could be wrong. I will look for them if anyone is interested. ✌

denxhun commented 4 years ago

This HW desing is really awesome I like it so much. What could be good for the next revision: to support SMS (and possible call) receiving from SIM800 a link between the GSM module RI (Ring In) pin and an inturrupt enabled digital input pin of ESP32 would be really beneficial.

Sample code: https://github.com/mayurharge/TinyGSM/blob/master/examples/Read_SMS_message_with_interrupt/Read_SMS_message_with_interrupt.ino

Duncro commented 4 years ago

Fix the mic and speaker pins to work. A plain Sim800l works fine, but this module has nothing coming out the speaker and the mic is extremely soft, using the same mic and speaker as on a standalone Sim800l module.

toomasz commented 4 years ago

When new version of ttgo t-call will be available on aliexpress?

bindi commented 4 years ago

Will there be a new revision of the t-call with the RI (Ring indicator) pin available? This is a must-have for low power applications.