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Post by nucleon on Jun 14, 2024 20:01:21 GMT
I’m using an Arduino UNO R4, I installed the Botletics Arduino library and LTE_Demo compiled and I uploaded the sketch to the board. I soldered the header pins to the shield and tested pin 10/11 and they have working joints.
The shield powers on, Done is green and PWR is green and the NET led is pulsing. I used an oscillioscope to check for communication between 10/11 and they are talking. I setup a trigger and can show screenshots but the sketch tries the handshake and prints ‘couldn’t find modem’
I hate to send these 2 boards back to Amazon, but I can’t figure out why they won’t communicate.
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Post by Botletics on Jun 15, 2024 2:04:54 GMT
Hi there,
Sorry to hear that you're having issues with the boards. Do you have a 3.7V LiPo battery installed with proper polarity? (Red wire should be on the left side of the connector when you plug it into the board, also marked with a "+" on the board). Screenshots of the serial monitor could also help.
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Post by nucleon on Jun 15, 2024 2:39:41 GMT
I do have a 3.7 LiPo installed with proper polarity. Swapped the software serial for hardware serial (I think there's an issue with ESP32 on UNO R4 not being SS compatible) and was able to get proper communication, although the modem was showing up as a 7500, it now seems to be operable. It may help someone else, to know that software serial doesn't work for an R4.  23:05:30.680 -> Timeout: No response to AT... last ditch attempt.
23:05:30.726 -> ---> AT
23:05:31.242 -> <---
23:05:31.382 -> ---> AT
23:05:31.896 -> <---
23:05:32.037 -> ---> AT
23:05:32.552 -> <---
23:05:32.693 -> ---> ATE0
23:05:33.213 -> <---
23:05:33.354 -> ---> ATE0
23:05:33.872 -> <---
23:05:33.872 -> Configuring to 9600 baud
23:05:33.919 -> ---> AT+IPR=9600
23:05:34.486 -> <---
23:05:34.486 -> Attempting to open comm with ATs
23:05:34.533 -> ---> AT
23:05:34.533 -> <--- AT
23:05:34.581 -> ---> AT
23:05:34.627 -> <--- AT
23:05:34.675 -> ---> ATE0
23:05:34.722 -> <--- ATE0
23:05:34.864 -> ---> ATE0
23:05:34.864 -> <--- OK
23:05:35.052 -> ---> AT+GMR
23:05:35.566 -> <--- Revision:1351B03SIM7000A
23:05:35.566 ->
23:05:35.566 -> OK
23:05:35.566 ->
23:05:35.659 -> ---> AT+CPMS="SM","SM","SM"
23:05:35.753 -> <--- +CPMS: 0,20,0,20,0,20
23:05:35.753 -> Modem is OK
23:05:35.753 -> Found SIM7000
23:05:35.847 -> ---> AT+GSN
23:05:35.894 -> <--- 865235033196607
23:05:35.894 -> Module IMEI: 865235033196607
23:05:35.988 -> ---> AT+CFUN=1
23:05:35.988 -> <--- OK
23:05:36.082 -> ---> AT+CGDCONT=1,"IP","hologram"
23:05:36.270 -> <--- OK
23:05:36.270 -> -------------------------------------
23:05:36.270 -> [?] Print this menu
23:05:36.270 -> [a] Read the ADC; 2.8V max for SIM800/808, 0V-VBAT for SIM7000 shield
23:05:36.364 -> [b] Read supply voltage
23:05:36.364 -> [C] Read the SIM CCID
23:05:36.364 -> [U] Unlock SIM with PIN code
23:05:36.364 -> [i] Read signal strength (RSSI)
23:05:36.504 -> [n] Get network status
23:05:36.504 -> [1] Get network connection info
23:05:36.504 -> [c] Make phone Call
23:05:36.504 -> [A] Get call status
23:05:36.504 -> [h] Hang up phone
23:05:36.646 -> [p] Pick up phone
23:05:36.646 -> [N] Number of SMS's
23:05:36.646 -> [r] Read SMS #
23:05:36.646 -> [R] Read all SMS
23:05:36.646 -> [d] Delete SMS #
23:05:36.646 -> [D] Delete all SMS
23:05:36.740 -> [s] Send SMS
23:05:36.740 -> [u] Send USSD
23:05:36.740 -> [y] Enable local time stamp (SIM800/808/70X0)
23:05:36.740 -> [Y] Enable NTP time sync (SIM800/808/70X0)
23:05:36.881 -> [t] Get network time
23:05:36.881 -> [G] Enable cellular data
23:05:36.881 -> [g] Disable cellular data
23:05:36.881 -> [l] Query GSMLOC (2G)
23:05:36.881 -> [w] Read webpage
23:05:36.881 -> [W] Post to website
23:05:37.020 -> [2] Post to dweet.io - 2G / LTE CAT-M / NB-IoT
23:05:37.020 -> [3] Post to dweet.io - 3G / 4G LTE
23:05:37.020 -> [O] Turn GPS on (SIM808/5320/7XX0)
23:05:37.114 -> [o] Turn GPS off (SIM808/5320/7XX0)
23:05:37.114 -> [L] Query GPS location (SIM808/5320/7XX0)
23:05:37.114 -> [E] Raw NMEA out (SIM808)
23:05:37.254 -> [S] Create serial passthru tunnel
23:05:37.254 -> -------------------------------------
23:05:37.254 ->
23:05:37.254 -> Modem> |
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Post by nucleon on Jun 15, 2024 3:15:47 GMT
I tested the hologram functionality and it can read my website, so perhaps all is well afterall.  |
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