Version: 1.55.0
Commit: c185983a683d14c396952dd432459097bc7f757f
Date: 2021-03-30T16:01:05.981Z (1 wk ago)
Electron: 11.3.0
Chrome: 87.0.4280.141
Node.js: 12.18.3
V8: 8.7.220.31-electron.0
OS: Darwin x64 18.7.0
- Steps to Repro. Sketch attached. Uses the Adafruit_FONA library and based on the examples provided for Http POST.
Hello Gents,
First off, I'd like to give a very greatful thank you to the library writers for doing this. There's no way I would have gotten as far as I would have without this very helpful repo. Thank you.
Using the example sketches provided with the library to do an HTTP POST. A POST operation works (needed to add some delay commands for SIM7070) but when I add a body to the POST, the POST fails.
In particular, here are the commands to add the body post.
void addBodyToPost()
{
// Sending plan text and wait one second, b/c I've seen that in other tutorials
fona.HTTP_addHeader("Content-Type", "text/plain", 10);
delay(1000);
fona.HTTP_addHeader("Host", "b225f0b114f9.ngrok.io", 21);
delay(1000);
fona.HTTP_addHeader("User-Agent", "IOE Client", 10);
delay(1000);
// Add the SHBOD. It will return a ">" when it is ready for data
char cmdBuff[150];
char body[] = {"foo"};
int bodySize = sizeof(body) / sizeof(body[0]);
// Format your command and wait up to 2 seconds for SIM7070 to respond
sprintf(cmdBuff, "AT+SHBOD=%i,10000", bodySize);
fona.getReply(cmdBuff, 2000);
// If you get a reply, hope it's a prompt
if (strstr(fona.replybuffer, ">") == NULL)
Serial.println("No > in reply buffer");
// Send the data to the module and wait for OK
if (!fona.sendCheckReply(body, "OK", 2000))
Serial.println("No OK in reply buffer.");
// Data added! Ha. That's what they WANT you to think.
}
Here is the entire sketch below. This was modified slightly from the ESP32 example. Again, everything works perfectly when I comment out the "addBodyToPost" function.
#include <Arduino.h>
#include "Adafruit_FONA.h" // https://github.com/botletics/SIM7000-LTE-Shield/tree/master/Code
#define SIMCOM_7070 // I'm using one of these
#define FONA_PWRKEY 18
#define FONA_RST 5
#define FONA_TX 16 // ESP32 hardware serial RX2 (GPIO16)
#define FONA_RX 17 // ESP32 hardware serial TX2 (GPIO17)
// For ESP32 hardware serial
#include <HardwareSerial.h>
HardwareSerial fonaSS(1);
// The fona library. Excellent!
Adafruit_FONA_LTE fona = Adafruit_FONA_LTE();
void addBodyToPost()
{
// Sending plan text and wait one second, b/c I've seen that in other tutorials
fona.HTTP_addHeader("Content-Type", "text/plain", 10);
delay(1000);
fona.HTTP_addHeader("Host", "b225f0b114f9.ngrok.io", 21);
delay(1000);
fona.HTTP_addHeader("User-Agent", "IOE Client", 10);
delay(1000);
// Add the SHBOD. It will return a ">" when it is ready for data
char cmdBuff[150];
char body[] = {"foo"};
int bodySize = sizeof(body) / sizeof(body[0]);
// Format your command and wait up to 2 seconds for SIM7070 go respond
sprintf(cmdBuff, "AT+SHBOD=%i,10000", bodySize);
fona.getReply(cmdBuff, 2000);
// If you get a reply, hope it's a prompt
if (strstr(fona.replybuffer, ">") == NULL)
Serial.println("No > in reply buffer");
// Send the data to the module and wait for OK
if (!fona.sendCheckReply(body, "OK", 2000))
Serial.println("No OK in reply buffer.");
// Data added! Ha. That's what they WANT you to think.
}
void postRequest()
{
addBodyToPost();
// Send your reply and wait up to five seconds for the module to confirm
fona.sendCheckReply("AT+SHREQ=\"http://b225f0b114f9.ngrok.io\",3", "OK", 5 * 1000);
// Read responses for up to 10 seconds
// Note: What's odd is that when adding a body, this fails immediately
// Parse response status and size
// Example reply --> "+SHREQ: "POST",200,452"
uint16_t status, datalen;
fona.readline(10 * 1000);
// What did it return?
DEBUG_PRINT("\t<--- ");
DEBUG_PRINTLN(fona.replybuffer);
// Did we get a status reply of 200?
if (!fona.parseReply(F("+SHREQ: \"POST\""), &status, ',', 1))
{
Serial.println("Unable to get status");
return;
}
// The moment of truth
if (status != 200)
{
// D'oh ... what went wrong?
Serial.println("No soup for you! Failure ....");
}
else
{
// Yus!! We got a reply from the server. Let's see what it says!
Serial.println("Huzzah! We have a response ...");
if (!fona.parseReply(F("+SHREQ: \"POST\""), &datalen, ',', 2))
{
Serial.println("Unable to get data");
}
DEBUG_PRINT("HTTP status: ");
DEBUG_PRINTLN(status);
DEBUG_PRINT("Data length: ");
DEBUG_PRINTLN(datalen);
// Read server response
fona.getReply(F("AT+SHREAD=0,"), datalen, 10000);
fona.readline();
DEBUG_PRINT("\t<--- ");
DEBUG_PRINTLN(fona.replybuffer); // +SHREAD: <datalen>
fona.readline(10000);
DEBUG_PRINT("\t<--- ");
DEBUG_PRINTLN(fona.replybuffer); // Print out server reply
}
}
void setup()
{
pinMode(FONA_RST, OUTPUT);
digitalWrite(FONA_RST, HIGH); // Default state
fona.powerOn(FONA_PWRKEY); // Power on the module
Serial.begin(9600);
Serial.println(F("ESP32 SIMCom Basic Test"));
Serial.println(F("Initializing....(May take several seconds)"));
fonaSS.begin(115200, SERIAL_8N1, FONA_TX, FONA_RX); // baud rate, protocol, ESP32 RX pin, ESP32 TX pin
Serial.println(F("Configuring to 9600 baud"));
fonaSS.println("AT+IPR=9600"); // Set baud rate
delay(100); // Short pause to let the command run
fonaSS.begin(9600, SERIAL_8N1, FONA_TX, FONA_RX); // Switch to 9600
if (!fona.begin(fonaSS))
{
Serial.println(F("Couldn't find FONA"));
while (1)
; // Don't proceed if it couldn't find the device
}
uint8_t type = fona.type();
Serial.println(F("FONA is OK"));
Serial.print(F("Found "));
switch (type)
{
case SIM7070:
Serial.println(F("SIM7070"));
break;
}
// Print module IMEI number.
char imei[16] = {0};
uint8_t imeiLen = fona.getIMEI(imei);
if (imeiLen > 0)
{
Serial.print("Module IMEI: ");
Serial.println(imei);
}
// Set modem to full functionality
fona.setFunctionality(1); // AT+CFUN=1
fona.setNetworkSettings(F("hologram")); // For Hologram SIM card
fona.setPreferredMode(38); // Use LTE only, not 2G
fona.setPreferredLTEMode(1); // Use LTE CAT-M only, not NB-IoT
int attemptCount = 0;
while (!fona.getNetworkInfo())
{
delay(1000);
attemptCount++;
if (attemptCount == 10)
{
ESP.restart();
}
}
// Attempt to turn on data
attemptCount = 0;
while (!fona.enableGPRS(true))
{
delay(1000);
attemptCount++;
if (attemptCount == 10)
{
ESP.restart();
}
}
char url[] = {"http://b225f0b114f9.ngrok.io"};
fona.HTTP_connect(url);
postRequest();
fona.getReply("AT+SHDISC", 10000); // Disconnect HTTP
delay(10 * 1000);
ESP.restart();
}
void loop(){};
This code gives me the output below:
ESP32 SIMCom Basic Test
Initializing....(May take several seconds)
Configuring to 9600 baud
Attempting to open comm with ATs
---> AT
<--- AT
---> AT
<--- AT
---> ATE0
<--- ATE0
---> ATE0
<--- OK
---> AT+GMR
<--- Revision:1951B03SIM7070
OK
---> AT+CPMS="SM","SM","SM"
<--- +CPMS: 0,10,0,10,0,10
FONA is OK
Found SIM7070
---> AT+GSN
<--- 869777041783823
Module IMEI: 869777041783823
---> AT+CFUN=1
<--- OK
---> AT+CGDCONT=1,"IP","hologram"
<--- OK
---> AT+CNMP=38
<--- OK
---> AT+CMNB=1
<--- OK
---> AT+CPSI?
<--- +CPSI: LTE CAT-M1,Online,310-410,0x3A85,46161679,402,EUTRAN-BAND12,5110,3,3,-17,-80,-50,11
OK replyOK
---> AT+CNACT=0,1
<--- OK
<--- +APP PDP: 0,ACTIVE
---> AT+CNACT?
<--- +CNACT: 0,1,"10.155.118.146"
---> AT+SHCONF="URL","http://b225f0b114f9.ngrok.io"
<--- OK
---> AT+SHCONF="BODYLEN",1024
<--- OK
---> AT+SHCONF="HEADERLEN",350
<--- OK
---> AT+SHCONN
<--- OK
---> AT+SHSTATE?
<--- +SHSTATE: 1
---> AT+SHCHEAD
<--- OK
---> AT+SHAHEAD="Content-Type","text/plain"
<--- OK
---> AT+SHAHEAD="Host","b225f0b114f9.ngrok.io"
<--- OK
---> AT+SHAHEAD="User-Agent","IOE Client"
<--- OK
---> AT+SHBOD=4,10000
<--- >
---> foo
<--- OK
---> AT+SHREQ="http://b225f0b114f9.ngrok.io",3
<--- OK
Unable to get status
---> AT+SHDISC
<--- AT+SHDISC
Any ideas on what's going wrong?
I've tried with and without headers. I've tried with varying SHBOD lengths (i.e. AT+SHBOD=3,... instead of AT_SHBOD=4). No luck.
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