<Cfloat> error for image detection project

Kimbetty · December 3, 2023, 5:37am

Question/Issue: I am working on a machine learning project using Arduino. The zip file download for esp32 won’t run because of a cfloat error. I have gone through the entire zip file and found no clfoat file that links to the numpy location. How do I fix this error?

Project ID:

Context/Use case:

msalexms · December 3, 2023, 4:14pm

Are you using the arduino ide? And downloading the Arduino library?

Or what ide are you using?

shawn_edgeimpulse · December 5, 2023, 5:28pm

Hi @Kimbetty,

Please copy and paste the error messages you see from the Arduino IDE. That will help us troubleshoot your issue.

stemmervanpulhof · January 31, 2024, 8:09am

I have the same issue, this is the error copy pasted:

In file included from C:\Users\berniabadr\Documents\Arduino\libraries\stemmervanpulhof-project-1_inferencing\src/edge-impulse-sdk/classifier/ei_model_types.h:24:0,
from C:\Users\berniabadr\Documents\Arduino\libraries\stemmervanpulhof-project-1_inferencing\src/edge-impulse-sdk/classifier/ei_run_dsp.h:21,
from C:\Users\berniabadr\Documents\Arduino\libraries\stemmervanpulhof-project-1_inferencing\src/edge-impulse-sdk/classifier/ei_run_classifier.h:23,
from C:\Users\berniabadr\Documents\Arduino\libraries\stemmervanpulhof-project-1_inferencing\src/stemmervanpulhof-project-1_inferencing.h:49,
from C:\Users\berniabadr\AppData\Local\Temp.arduinoIDE-unsaved2024031-30596-1cofyw8.q9r6\static_buffer\static_buffer.ino:18:
C:\Users\berniabadr\Documents\Arduino\libraries\stemmervanpulhof-project-1_inferencing\src/edge-impulse-sdk/dsp/numpy.hpp:32:10: fatal error: cfloat: No such file or directory
#include
^~~~~~~~
compilation terminated.
exit status 1

Compilation error: exit status 1

shawn_edgeimpulse · January 31, 2024, 6:31pm

Hi @stemmervanpulhof,

Which ESP32 are you using?

stemmervanpulhof · February 4, 2024, 2:36pm

I don’t have a lot of experience so if I need to be more specific tell me. But I’m using the ESP-EYE. Does that help?

shawn_edgeimpulse · February 23, 2024, 7:27pm

@stemmervanpulhof,

Apologies for the delay. Were you able to figure this out? If not, could you provide the following:

Edge Impulse project ID number (so I can try to replicate the issue)
Which version of the Arduino ESP32 board package do you have installed (you can find this in the Arduino IDE)?

stemmervanpulhof · February 23, 2024, 8:00pm

Hi @shawn_edgeimpulse,

No worries, thanks for helping me out! I have not yet figured it out.
The project ID number is: 284341. I’ve also got the link in case you’d need it: stemmervanpulhof-project-1 - Dashboard - Edge Impulse.
For the board package, I haven’t downloaded any library since I deleted the Arduino IDE application and reinstalled it to see if it would work. I did have a library installed before but I do not know precisely which one.

Kind regards

shawn_edgeimpulse · February 23, 2024, 8:42pm

Hi @stemmervanpulhof,

I was able to compile your project successfully. Here is what I used:

Arduino IDE v2.2.1
esp32 board package v2.0.14
Board selected: ESP32 Wrover Module

Could you see if those settings/versions work for you?

stemmervanpulhof · February 28, 2024, 8:16am

Hi @shawn_edgeimpulse,

Sorry for the late response, I hadn’t touched my project since friday and I didn’t see your message. Apart from that, it worked! I really appreciate the help. I do have another issue though, it keeps giving me an error exit status 2. Does it have to do with the cable I use to connect the esp32 to the PC? Because I’ve tried multiple cables and nothing works. This is the error:
Sketch uses 447345 bytes (34%) of program storage space. Maximum is 1310720 bytes.
Global variables use 26460 bytes (8%) of dynamic memory, leaving 301220 bytes for local variables. Maximum is 327680 bytes.
esptool.py v4.5.1
Serial port COM6
Connecting…

A fatal error occurred: Failed to connect to ESP32: No serial data received.
For troubleshooting steps visit: Troubleshooting - ESP32 - — esptool.py latest documentation
Failed uploading: uploading error: exit status 2

Kind regards

shawn_edgeimpulse · February 29, 2024, 5:17pm

Hi @stemmervanpulhof,

The error could be related to a number of issues: bad cable, bad driver, board not in bootloader. Please check out these threads to see if any of the advice in there helps:

github.com/espressif/arduino-esp32

Failed to connect and upload to ESP32: No serial data received.

opened 08:08AM - 11 May 23 UTC

closed 08:20PM - 25 May 23 UTC

afsheenfaiq

Type: Question Status: Community help needed Resolution: HW issue

### Board ESP32 s ### Device Description On Arduino UNO ### Hardware Configu…ration no ### Version v2.0.1 ### IDE Name Arduino ### Operating System Windows 10 ### Flash frequency 40 ### PSRAM enabled yes ### Upload speed 115200 ### Description Failed to connect to ESP32: No serial data received. ### Sketch ```cpp #include "esp_camera.h" #include <WiFi.h> // // WARNING!!! PSRAM IC required for UXGA resolution and high JPEG quality // Ensure ESP32 Wrover Module or other board with PSRAM is selected // Partial images will be transmitted if image exceeds buffer size // // You must select partition scheme from the board menu that has at least 3MB APP space. // Face Recognition is DISABLED for ESP32 and ESP32-S2, because it takes up from 15 // seconds to process single frame. Face Detection is ENABLED if PSRAM is enabled as well // =================== // Select camera model // =================== //#define CAMERA_MODEL_WROVER_KIT // Has PSRAM //#define CAMERA_MODEL_ESP_EYE // Has PSRAM //#define CAMERA_MODEL_ESP32S3_EYE // Has PSRAM //#define CAMERA_MODEL_M5STACK_PSRAM // Has PSRAM //#define CAMERA_MODEL_M5STACK_V2_PSRAM // M5Camera version B Has PSRAM //#define CAMERA_MODEL_M5STACK_WIDE // Has PSRAM //#define CAMERA_MODEL_M5STACK_ESP32CAM // No PSRAM //#define CAMERA_MODEL_M5STACK_UNITCAM // No PSRAM #define CAMERA_MODEL_AI_THINKER // Has PSRAM //#define CAMERA_MODEL_TTGO_T_JOURNAL // No PSRAM //#define CAMERA_MODEL_XIAO_ESP32S3 // Has PSRAM // ** Espressif Internal Boards ** //#define CAMERA_MODEL_ESP32_CAM_BOARD //#define CAMERA_MODEL_ESP32S2_CAM_BOARD //#define CAMERA_MODEL_ESP32S3_CAM_LCD #include "camera_pins.h" // =========================== // Enter your WiFi credentials // =========================== //const char* ssid = "**********"; //const char* password = "**********"; const char* ssid = "STAFF"; const char* password = "Staff2023$nas"; //const char* ssid = "faiq001"; //const char* password = "FA0508420374"; void startCameraServer(); void setupLedFlash(int pin); void setup() { Serial.begin(115200); Serial.setDebugOutput(true); Serial.println(); camera_config_t config; config.ledc_channel = LEDC_CHANNEL_0; config.ledc_timer = LEDC_TIMER_0; config.pin_d0 = Y2_GPIO_NUM; config.pin_d1 = Y3_GPIO_NUM; config.pin_d2 = Y4_GPIO_NUM; config.pin_d3 = Y5_GPIO_NUM; config.pin_d4 = Y6_GPIO_NUM; config.pin_d5 = Y7_GPIO_NUM; config.pin_d6 = Y8_GPIO_NUM; config.pin_d7 = Y9_GPIO_NUM; config.pin_xclk = XCLK_GPIO_NUM; config.pin_pclk = PCLK_GPIO_NUM; config.pin_vsync = VSYNC_GPIO_NUM; config.pin_href = HREF_GPIO_NUM; config.pin_sccb_sda = SIOD_GPIO_NUM; config.pin_sccb_scl = SIOC_GPIO_NUM; config.pin_pwdn = PWDN_GPIO_NUM; config.pin_reset = RESET_GPIO_NUM; config.xclk_freq_hz = 20000000; config.frame_size = FRAMESIZE_UXGA; config.pixel_format = PIXFORMAT_JPEG; // for streaming //config.pixel_format = PIXFORMAT_RGB565; // for face detection/recognition config.grab_mode = CAMERA_GRAB_WHEN_EMPTY; config.fb_location = CAMERA_FB_IN_PSRAM; config.jpeg_quality = 12; config.fb_count = 1; // if PSRAM IC present, init with UXGA resolution and higher JPEG quality // for larger pre-allocated frame buffer. if(config.pixel_format == PIXFORMAT_JPEG){ if(psramFound()){ config.jpeg_quality = 10; config.fb_count = 2; config.grab_mode = CAMERA_GRAB_LATEST; } else { // Limit the frame size when PSRAM is not available config.frame_size = FRAMESIZE_SVGA; config.fb_location = CAMERA_FB_IN_DRAM; } } else { // Best option for face detection/recognition config.frame_size = FRAMESIZE_240X240; #if CONFIG_IDF_TARGET_ESP32S3 config.fb_count = 2; #endif } #if defined(CAMERA_MODEL_ESP_EYE) pinMode(13, INPUT_PULLUP); pinMode(14, INPUT_PULLUP); #endif // camera init esp_err_t err = esp_camera_init(&config); if (err != ESP_OK) { Serial.printf("Camera init failed with error 0x%x", err); return; } sensor_t * s = esp_camera_sensor_get(); // initial sensors are flipped vertically and colors are a bit saturated if (s->id.PID == OV3660_PID) { s->set_vflip(s, 1); // flip it back s->set_brightness(s, 1); // up the brightness just a bit s->set_saturation(s, -2); // lower the saturation } // drop down frame size for higher initial frame rate if(config.pixel_format == PIXFORMAT_JPEG){ s->set_framesize(s, FRAMESIZE_QVGA); } #if defined(CAMERA_MODEL_M5STACK_WIDE) || defined(CAMERA_MODEL_M5STACK_ESP32CAM) s->set_vflip(s, 1); s->set_hmirror(s, 1); #endif #if defined(CAMERA_MODEL_ESP32S3_EYE) s->set_vflip(s, 1); #endif // Setup LED FLash if LED pin is defined in camera_pins.h #if defined(LED_GPIO_NUM) setupLedFlash(LED_GPIO_NUM); #endif WiFi.begin(ssid, password); WiFi.setSleep(false); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected"); startCameraServer(); Serial.print("Camera Ready! Use 'http://"); Serial.print(WiFi.localIP()); Serial.println("' to connect"); } void loop() { // Do nothing. Everything is done in another task by the web server delay(10000); } ``` ### Debug Message ```plain Serial port COM9 Connecting...................................... A fatal error occurred: Failed to connect to ESP32: No serial data received. For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html Failed uploading: uploading error: exit status 2 ``` ### Other Steps to Reproduce _No response_ ### I have checked existing issues, online documentation and the Troubleshooting Guide - [X] I confirm I have checked existing issues, online documentation and Troubleshooting guide.

stemmervanpulhof · March 20, 2024, 8:31am

Hi @shawn_edgeimpulse,

I’ll check it out. I’m really thankful for your help.

Kind regards,

ttzzozztt · July 11, 2024, 7:43pm

Same issue when porting to new c++ based project. When calling “#include “edge-impulse-sdk/classifier/ei_run_classifier.h””, it gives me an error, fatal error: ‘cfloat’ file not found