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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst) V8 U) H' M/ a8 Y0 R! U
- #include <ESP8266HTTPClient.h>1 M( z* k% m4 i
- #include <ESP8266WiFi.h>4 e3 x& i( o# G; l
- #include <ESP8266WiFiMulti.h># A& n7 x7 v8 h$ h6 J
- #include <ESP8266WebServer.h># L2 s2 Q+ r% K/ a' Q4 b# K8 ]/ w
- #include <arduino.h>4 X0 \; A- T* l9 X+ `
- ESP8266WiFiMulti WiFiMulti;# s$ J; R9 o2 A9 V! _
- ESP8266WebServer server(80);0 [1 S6 v2 Q x- h8 c2 X$ P0 U
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
^6 ?5 ~; {6 x* @ - ADC_MODE(ADC_VCC);
& j* h! M- U8 } - void setup() {
6 y! x w2 @3 F - Serial.begin(115200);
3 Y# |3 A5 f7 S" q+ M" e - Serial.print("\r\n\n");
0 V; E: D/ a3 b } - pinMode(2,OUTPUT);
( t& ]! q+ I, j8 H6 \% d& b - // WIFI/ ?/ x6 Z7 q: Q# ]: o) [
- WiFi.mode(WIFI_STA);/ a% E. j3 ~ {" T2 F: d
- WiFi.hostname("Sparkle");, d$ R* v" ]& g' P* m
- WiFiMulti.addAP("wifi ssid", "wifi password");
& e* T. j- p* ` - int tryNum = 15;4 V# T( F6 d9 j* y2 L6 Q b: V
- Serial.print("Connect WiFi");
/ r% Q' z- _/ [% `7 L5 Y - while (WiFiMulti.run() != WL_CONNECTED) {
4 B9 N' }) W: k3 u# d' b" b - digitalWrite(2,0);; f8 p1 J; s. X7 F
- delay(200);
/ x# I( { c: h! V5 S5 `; |, E6 W - digitalWrite(2,1);1 @' M6 D# ?9 p9 H
- delay(300);
* Y% }' X- u8 N$ E - Serial.print(".");0 `2 \3 h) Z. e1 w6 g% `; l
- tryNum--;
6 P7 e- l4 N! c" |& G' v a - if (tryNum == 0) {
9 G2 v; Q% I' W1 A* E3 L! H - // 1min
K* q6 e. ? g7 ^$ a. _ - // ESP.deepSleep(60e6);
% s8 V+ ^7 {( ~1 b4 v - ESP.deepSleep(0);: U8 I( Y2 b; P! W) M9 `
- }# z+ G, L. q# b" u. M; j) d
- }/ p; }# u( m5 \3 s3 b
- Serial.print("\r\n");9 b N( \3 Z& J7 B2 x% {9 H0 R# H
- digitalWrite(2,1);' Y, \/ [4 B% Q4 s0 \6 y
- Serial.print("IP address : ");
c; D" I) q) c6 j - Serial.println(WiFi.localIP());1 k6 [ c4 y: x4 a+ x& |
- server.on("/", HTTP_GET, [](){
% T- \9 p2 D4 \7 F; b - server.sendHeader("Connection", "close"); k* R, Q7 C8 I7 S: r; V/ T; R
- server.send(200, "text/html", serverIndex);
3 c) d% ^1 n( ~0 ?4 ` - });' D- @ V' A$ u( \4 j# @' a
- server.on("/update", HTTP_POST, [](){
~0 M* K1 T B* N. X - server.sendHeader("Connection", "close");; j5 ~5 o/ ~, c: x4 g8 M; g) u( w
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 R( b4 Z. v+ f - ESP.restart();3 {: q% X/ @4 p6 d! T/ ~
- },[](){0 z: g: k- X9 a$ s' T" Q9 ~4 G, V8 M
- HTTPUpload& upload = server.upload();* a+ _4 y* Y5 B; }" ]4 K
- if(upload.status == UPLOAD_FILE_START){
1 w) `0 a& l; S! h; g - Serial.setDebugOutput(true);
/ Q+ D: V' ~/ j( O# z1 u9 g - Serial.printf("Update: %s\n", upload.filename.c_str());9 B# Q: h K: `! {) m1 Y2 |
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 M( I% F. X9 ~9 I/ M4 a# Y5 a
- if(!Update.begin(maxSketchSpace)){( |# g/ [2 L8 C' u4 D$ ]
- Update.printError(Serial);2 e. o6 ]+ M1 @8 L( @, ]
- }8 l4 E1 R N! J( a$ }& w
- } else if(upload.status == UPLOAD_FILE_WRITE){3 A* i' @9 F+ }. ]. [, h1 |
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){% d) q- ^9 R! g- H. D: c4 @
- Update.printError(Serial);: s9 E2 i0 h' V; W w2 J
- }$ k: M7 a# Q2 B' p& ?. O/ c" i
- } else if(upload.status == UPLOAD_FILE_END){: F% m: j6 H+ }
- if(Update.end(true)){
, o6 X$ ?' G; N- ? - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' T- u9 {( e) A* E, e% L - } else {6 g$ q! J! R' e5 [ Z: ]2 f
- Update.printError(Serial);
# ]( Q, r/ H/ P - }
4 D3 y, X% K, u! v - Serial.setDebugOutput(false);3 F" D+ G' F- e4 z0 J% h, c- B
- }
# G) \$ a" m" S% H. Z, }/ l - yield();
w4 i8 S* i" u; D2 i - });% M2 {( C/ W& W3 n4 ], q
-
m: @" m) z6 T0 r - digitalWrite(2,0);9 B1 }1 F2 k' ]( [/ R
- mainAction();
7 q+ ^7 V5 c8 W/ H# K% p' I' N - if (digitalRead(0)){
, s' V9 C2 y% e5 v9 r9 G0 f6 r - ESP.deepSleep(0);) D3 ]7 b- G3 Q; _, s
- } else {
9 V# ^, l; Q( F9 X2 [& w5 W6 i! P - server.begin();
4 a3 U) z0 [/ D, J$ @ - }) O" C0 H: B; Y, M" |" D8 M
- }
* o. t5 N3 G" x/ Q7 m - void loop() {) n7 q9 T# c, A: ]# f
- server.handleClient();
3 {% }8 q6 h2 n: t3 a+ o' J" _ - delay(1);
: y1 |% j1 R; _5 f - }5 [3 N2 W8 _5 t
- String doGet(String url){& c8 t4 f! y5 X- x9 @
- if ((WiFiMulti.run() == WL_CONNECTED)) {
4 b6 J. I) F5 F% [ - HTTPClient http;
; Q. s; x" g3 W& ~7 o5 ?6 i - Serial.println("[HTTP] begin...");
' }$ [- b/ a o3 o7 o- o - if (url.startsWith("https")) {5 h T) L' [- U5 Y: X& J
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, j0 {, d6 C" c8 l4 x - } else {) H: L/ d& J2 I9 u( _( }" @* r
- http.begin(url);7 o; M2 G* L% I% a, G
- }
2 K, G! M" s# z - Serial.println("[HTTP] GET...");
& l8 C6 D* m2 {9 h - int httpCode = http.GET();
* T) d& G# _6 k - if (httpCode > 0) {
5 c; Z/ u) S: N/ ]( d8 k Q - Serial.printf("[HTTP] code: %d\n", httpCode);; e% B$ ]& l+ ~
- if (httpCode == HTTP_CODE_OK) {
1 R5 H3 F) |) g- b6 N - String payload = http.getString();6 L( S" `! R3 Q3 C! j7 O3 I
- Serial.println(payload);" I$ L( C6 m T* i/ t7 S$ R
- Serial.print("\r\n");, Z- I$ N) s' g, ^: W" Z& E
- return payload;
2 A4 a, V' Z4 ~ - }
6 y$ A( S) w5 r* Y a& r - } else {
( q+ M2 U. s( ]2 A - Serial.printf("[HTTP] GET... failed, error: %s\n",
( H4 t) w, n# Q3 ?0 j( D - http.errorToString(httpCode).c_str());7 ]( \$ `4 T1 L. h8 E+ s
- }
5 S% D& q9 C0 j1 o3 r$ V* t - http.end(); j; _3 }+ s2 I4 g
- return "";
" _+ G' A1 ~9 y4 R - }
- J2 e4 D0 g) q' C4 P: v - }2 y; n& b4 B2 b5 m; ?
- void mainAction() {. B0 ~. }: ^$ a5 `) B+ ^" }
- // 发送请求
( M* k! y# W }* n7 \1 |' r - doGet("http://google.cn");
; e) V3 C4 c- b% O+ q - }1 F z/ |+ b7 \1 p l w
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