{"id":1216,"date":"2019-06-13T15:49:14","date_gmt":"2019-06-13T06:49:14","guid":{"rendered":"https:\/\/eguchi.jp\/blog\/?p=1216"},"modified":"2019-06-13T16:04:34","modified_gmt":"2019-06-13T07:04:34","slug":"m5stick-c%e3%81%a8%e3%82%b7%e3%83%aa%e3%82%a2%e3%83%ab%e3%82%ab%e3%83%a1%e3%83%a9%e3%82%92%e7%b9%8b%e3%81%84%e3%81%a7%e3%81%bf%e3%81%9f","status":"publish","type":"post","link":"https:\/\/eguchi.jp\/blog\/?p=1216","title":{"rendered":"M5STICK-C\u3068\u30b7\u30ea\u30a2\u30eb\u30ab\u30e1\u30e9\u3092\u7e4b\u3044\u3067\u307f\u305f"},"content":{"rendered":"\n

UART\u63a5\u7d9a\u3092\u3055\u3089\u306b\u8ffd\u6c42\u3059\u308b\u305f\u3081\u306b\u3001\u307e\u305f\u3001\u624b\u5143\u306b\u3042\u3063\u305fGrove – Serial Camera Kit<\/a>\u3092\u3001M5STICK-C\u306eGROVE\u7aef\u5b50\u306b\u63a5\u7d9a\u3057\u3066\u3001\u5199\u771f\u3092\u53d6\u5f97\u3057\u3066\u307f\u3088\u3046\u3068\u601d\u3063\u305f\u3002<\/p>\n\n\n\n

\"\"
\u63a5\u7d9a\u30a4\u30e1\u30fc\u30b8\u56f3<\/figcaption><\/figure>\n\n\n\n

\u4e00\u822c\u306e\u65b9\u306f\u3001\u64ae\u5f71\u3057\u305f\u5199\u771f\u3092M5STICK-C\u306e\u6db2\u6676\u306b\u8868\u793a\u3059\u308b\u3060\u308d\u3046\u3051\u3069\u3001M5STICK-C\u306e\u30e9\u30a4\u30d6\u30e9\u30ea ver0.05<\/a>\u306f\u3001M5STACK\u306e\u3088\u3046\u306b\u3001JPG\u30c7\u30fc\u30bf\u3092\u8868\u793a\u3059\u308bAPI\u304c\u307e\u3060\u5b9f\u88c5\u3055\u308c\u3066\u3044\u306a\u3044\uff08\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8\u3055\u308c\u3066\u3044\u308b\uff09\u3002
M5STACK\u307f\u305f\u3044\u306b\u3001TF\u30ab\u30fc\u30c9\u30b9\u30ed\u30c3\u30c8\u304c\u642d\u8f09\u3055\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u30e1\u30c7\u30a3\u30a2\u306b\u3082\u66f8\u304d\u51fa\u3057\u3067\u304d\u306a\u3044\u3002
\u3058\u3083\u3042\u3001\u6c4e\u7528I\/O\u3092\u4f7f\u3063\u3066SPI\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f7f\u3063\u3066TF\u30ab\u30fc\u30c9\u30b9\u30ed\u30c3\u30c8\u3092\u642d\u8f09\u3059\u308b\u3068\u3044\u3046\u624b\u6bb5\u3082\u8003\u3048\u3089\u308c\u308b\u3051\u3069\u3001\uff13\u3064\u3057\u304bGPIO\u304c\u306a\u3044\u306e\u3067\u3001\u5b9f\u88c5\u3067\u304d\u306a\u3044\u3002<\/p>\n\n\n\n

\u3053\u3053\u3067\u3001\u8ae6\u3081\u308b\u8a33\u306b\u3044\u304b\u306a\u3044\u79c1\u306f\u3001\u6587\u5b57\u5217\u3067\u753b\u50cf\u3092\u8868\u793a\u3059\u308b\u624b\u6bb5\u306b\u6253\u3063\u3066\u51fa\u308b\u3053\u3068\u306b\u3057\u305f\u3002
Chrome\u30d6\u30e9\u30a6\u30b6\u3092\u4f7f\u3063\u3066\u3044\u308b\u4eba\u306f\u3001\u4e0b\u8a18\u306e\u6587\u5b57\u5217\uff08\u9577\u3044\u3051\u3069\uff09\u3092URL\u306b\u30b3\u30d4\u30da\u3057\u3066\u307f\u307e\u3057\u3087\u3046\uff01<\/p>\n\n\n\n

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HTML\u30d5\u30a1\u30a4\u30eb\u306e\u4e2d\u306b\u753b\u50cf\u3092\u57cb\u3081\u8fbc\u3093\u3067\u8868\u793a\u3055\u305b\u308b\u65b9\u6cd5<\/a>\u304c\u3042\u308a\u307e\u3057\u3066\u3001\u3053\u308c\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u8a73\u7d30\u306f\u3001\u30ea\u30f3\u30af\u306e\u8a18\u4e8b\u8aad\u3093\u3067\u306d\u3002<\/p>\n\n\n\n

\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/h2>\n\n\n
\n\/\/ M5STICK-C\u3068Grove - Serial Camera Ki\u3092\u7e4b\u3044\u3067\u3001\u6587\u5b57\u5217(Base64)\u3067\u3001\u5199\u771f\u3092\u53d6\u5f97\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\n\/\/ Programed by Kazuyuki Eguchi\n\n#include &lt;M5StickC.h>\n\n#include &lt;base64.h>\n\n#define PIC_MAX_SIZE 10000\n\n#define PIC_PKT_LEN    128        \/\/data length of each read, dont set this too big because ram is limited\n#define PIC_FMT_VGA    7\n#define PIC_FMT_CIF    5\n#define PIC_FMT_OCIF   3\n#define CAM_ADDR       0\n\n#define PIC_FMT        PIC_FMT_CIF\n\nHardwareSerial CAM_SERIAL(1);\n\nconst byte cameraAddr = (CAM_ADDR &lt;&lt; 5);  \/\/ addr\nunsigned long picTotalLen = 0;            \/\/ picture length\n\nunsigned char image_data[PIC_MAX_SIZE];\nunsigned long image_length = 0;\n\nvoid setup() {\n  M5.begin();\n  \n  CAM_SERIAL.begin(9600, SERIAL_8N1, 33, 32);        \/\/ GROVE\u7aef\u5b50\u306e\u5834\u5408\n\n  initialize();\n  preCapture();\n}\n\nvoid loop() {\n  Capture();\n  GetData();\n}\n\nvoid clearRxBuf()\n{\n  while (CAM_SERIAL.available()) \n  {\n    CAM_SERIAL.read(); \n  }\n}\n\nvoid sendCmd(char cmd[], int cmd_len)\n{\n  for (char i = 0; i &lt; cmd_len; i++) CAM_SERIAL.write(cmd[i]); \n}\n\nint readBytes(char *dest, int len, unsigned int timeout)\n{\n  int read_len = 0;\n  unsigned long t = millis();\n  while (read_len &lt; len)\n  {\n    while (CAM_SERIAL.available()&lt;1)\n    {\n      if ((millis() - t) > timeout)\n      {\n        return read_len;\n      }\n    }\n    *(dest+read_len) = CAM_SERIAL.read();\n    \/\/ Serial.write(*(dest+read_len));\n    read_len++;\n  }\n  return read_len;\n}\n\nvoid initialize()\n{   \n  char cmd[] = {0xaa,0x0d|cameraAddr,0x00,0x00,0x00,0x00} ;  \n  unsigned char resp[6];\n\n  Serial.print("initializing camera...");\n  \n  while (1) \n  {\n    sendCmd(cmd,6);\n    if (readBytes((char *)resp, 6,1000) != 6)\n    {\n      Serial.print(".");\n      continue;\n    }\n    if (resp[0] == 0xaa &amp;&amp; resp[1] == (0x0e | cameraAddr) &amp;&amp; resp[2] == 0x0d &amp;&amp; resp[4] == 0 &amp;&amp; resp[5] == 0) \n    {\n      if (readBytes((char *)resp, 6, 500) != 6) continue; \n      if (resp[0] == 0xaa &amp;&amp; resp[1] == (0x0d | cameraAddr) &amp;&amp; resp[2] == 0 &amp;&amp; resp[3] == 0 &amp;&amp; resp[4] == 0 &amp;&amp; resp[5] == 0) break; \n    }\n  }  \n  cmd[1] = 0x0e | cameraAddr;\n  cmd[2] = 0x0d;\n  sendCmd(cmd, 6); \n  \/\/Serial.println("\\nCamera initialization done.");\n}\n\nvoid preCapture()\n{\n  char cmd[] = { 0xaa, 0x01 | cameraAddr, 0x00, 0x07, 0x00, PIC_FMT };  \n  unsigned char resp[6]; \n  \n  while (1)\n  {\n    clearRxBuf();\n    sendCmd(cmd, 6);\n    if (readBytes((char *)resp, 6, 100) != 6) continue; \n    if (resp[0] == 0xaa &amp;&amp; resp[1] == (0x0e | cameraAddr) &amp;&amp; resp[2] == 0x01 &amp;&amp; resp[4] == 0 &amp;&amp; resp[5] == 0) break; \n  }\n}\n\nvoid Capture()\n{\n  char cmd[] = { 0xaa, 0x06 | cameraAddr, 0x08, PIC_PKT_LEN &amp; 0xff, (PIC_PKT_LEN>>8) &amp; 0xff ,0}; \n  unsigned char resp[6];\n\n  while (1)\n  {\n    clearRxBuf();\n    sendCmd(cmd, 6);\n    if (readBytes((char *)resp, 6, 100) != 6) continue;\n    if (resp[0] == 0xaa &amp;&amp; resp[1] == (0x0e | cameraAddr) &amp;&amp; resp[2] == 0x06 &amp;&amp; resp[4] == 0 &amp;&amp; resp[5] == 0) break; \n  }\n  cmd[1] = 0x05 | cameraAddr;\n  cmd[2] = 0;\n  cmd[3] = 0;\n  cmd[4] = 0;\n  cmd[5] = 0; \n  while (1)\n  {\n    clearRxBuf();\n    sendCmd(cmd, 6);\n    if (readBytes((char *)resp, 6, 100) != 6) continue;\n    if (resp[0] == 0xaa &amp;&amp; resp[1] == (0x0e | cameraAddr) &amp;&amp; resp[2] == 0x05 &amp;&amp; resp[4] == 0 &amp;&amp; resp[5] == 0) break;\n  }\n  cmd[1] = 0x04 | cameraAddr;\n  cmd[2] = 0x1;\n  while (1) \n  {\n    clearRxBuf();\n    sendCmd(cmd, 6);\n    if (readBytes((char *)resp, 6, 100) != 6) continue;\n    if (resp[0] == 0xaa &amp;&amp; resp[1] == (0x0e | cameraAddr) &amp;&amp; resp[2] == 0x04 &amp;&amp; resp[4] == 0 &amp;&amp; resp[5] == 0)\n    {\n      if (readBytes((char *)resp, 6, 1000) != 6)\n      {\n        continue;\n      }\n      if (resp[0] == 0xaa &amp;&amp; resp[1] == (0x0a | cameraAddr) &amp;&amp; resp[2] == 0x01)\n      {\n        picTotalLen = (resp[3]) | (resp[4] &lt;&lt; 8) | (resp[5] &lt;&lt; 16); \n        Serial.print("picTotalLen:");\n        Serial.println(picTotalLen);\n        break;\n      }\n    }\n  }  \n}\n\nvoid GetData()\n{\n  unsigned int pktCnt = (picTotalLen) \/ (PIC_PKT_LEN - 6); \n  if ((picTotalLen % (PIC_PKT_LEN-6)) != 0) pktCnt += 1;\n  \n  char cmd[] = { 0xaa, 0x0e | cameraAddr, 0x00, 0x00, 0x00, 0x00 };  \n  unsigned char pkt[PIC_PKT_LEN];\n\n  image_length = 0;\n  \n  for (unsigned int i = 0; i &lt; pktCnt; i++)\n  {\n    cmd[4] = i &amp; 0xff;\n    cmd[5] = (i >> 8) &amp; 0xff;\n    \n    int retry_cnt = 0;\n  retry:\n    delay(10);\n    clearRxBuf(); \n    sendCmd(cmd, 6); \n    uint16_t cnt = readBytes((char *)pkt, PIC_PKT_LEN, 200);\n    \n    unsigned char sum = 0; \n    for (int y = 0; y &lt; cnt - 2; y++)\n    {\n      sum += pkt[y];\n    }\n    if (sum != pkt[cnt-2])\n    {\n      if (++retry_cnt &lt; 100) goto retry;\n      else break;\n    }\n\n    if(picTotalLen &lt; PIC_MAX_SIZE)\n    {\n      int co;\n      for(co = 0; co &lt; (cnt-6) ; co++)\n      {\n        image_data[image_length] = pkt[co + 4];\n        image_length++;\n      }\n    }\n  }\n\n  if(picTotalLen &lt; PIC_MAX_SIZE)\n  {\n    Serial.print("data:image\/jpeg;base64,");\n    String encoded = base64::encode(image_data, image_length);\n    Serial.println(encoded);\n  }\n  \n  cmd[4] = 0xf0;\n  cmd[5] = 0xf0; \n  sendCmd(cmd, 6); \n}\n<\/pre><\/div>\n\n\n
\u52d5\u4f5c\u7d50\u679c\uff08\u4f8b\uff09\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u4e0a<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\u4ee5\u4e0a\u3001\u3054\u53c2\u8003\u307e\u3067\u306b<\/p>\n","protected":false},"excerpt":{"rendered":"
UART\u63a5\u7d9a\u3092\u3055\u3089\u306b\u8ffd\u6c42\u3059\u308b\u305f\u3081\u306b\u3001\u307e\u305f\u3001\u624b\u5143\u306b\u3042\u3063\u305fGrove – Serial Camera Kit\u3092\u3001M5STICK-C\u306eGROVE\u7aef\u5b50\u306b\u63a5\u7d9a\u3057\u3066\u3001\u5199\u771f\u3092\u53d6\u5f97\u3057\u3066\u307f\u3088\u3046\u3068\u601d\u3063\u305f\u3002 \u4e00\u822c\u306e\u65b9\u306f\u3001\u64ae\u5f71\u3057\u305f\u5199 … \u7d9a\u304d\u3092\u8aad\u3080 M5STICK-C\u3068\u30b7\u30ea\u30a2\u30eb\u30ab\u30e1\u30e9\u3092\u7e4b\u3044\u3067\u307f\u305f<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1216","post","type-post","status-publish","format-standard","hentry","category-2"],"_links":{"self":[{"href":"https:\/\/eguchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1216","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eguchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eguchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eguchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eguchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1216"}],"version-history":[{"count":6,"href":"https:\/\/eguchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1216\/revisions"}],"predecessor-version":[{"id":1224,"href":"https:\/\/eguchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1216\/revisions\/1224"}],"wp:attachment":[{"href":"https:\/\/eguchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eguchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eguchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}