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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)
5 Z1 @( _- S+ O# c- #include <ESP8266HTTPClient.h>; j8 k6 v' q* G5 A. ^$ F1 {
- #include <ESP8266WiFi.h>2 k$ I: K$ Q% p$ y O O, F
- #include <ESP8266WiFiMulti.h>
$ Y/ w- I% N1 G7 T7 O" | - #include <ESP8266WebServer.h>" I9 P, W+ i, c/ }+ w/ X& _. i3 L
- #include <arduino.h>5 e+ |" G8 Q! u( b
- ESP8266WiFiMulti WiFiMulti;# R ?. j" j m& W* X! m3 J4 |' C
- ESP8266WebServer server(80);$ R8 E% w9 ]. {2 Q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
( N( X* t, c, \) U - ADC_MODE(ADC_VCC);
. e" ~$ N# ]) [9 e1 h- ? - void setup() {
# ^" d8 C2 j7 c+ o" F - Serial.begin(115200);# M2 a4 }, M9 ~$ }6 J4 o8 g
- Serial.print("\r\n\n");% x3 @' m/ ?$ F& G. {$ ?1 p
- pinMode(2,OUTPUT);, Q- q* ?9 q6 d
- // WIFI
. l- \3 ]7 F2 d/ q# r - WiFi.mode(WIFI_STA);! _; N/ c9 B1 k; |% e# ]: J' ~
- WiFi.hostname("Sparkle");
) ]9 P$ f3 b. g8 g - WiFiMulti.addAP("wifi ssid", "wifi password");
# d5 j% g. X: O# x; } - int tryNum = 15;+ d u% c: l% ^; D' r2 q8 y) A U
- Serial.print("Connect WiFi");" \' l0 U* j, E) h2 I- F- D
- while (WiFiMulti.run() != WL_CONNECTED) {
]6 `4 R" p$ x- |1 d$ Y& Y+ I6 Z# Z - digitalWrite(2,0);3 n |( P. y0 ^0 h
- delay(200);3 z( C' O5 g' L4 \8 F
- digitalWrite(2,1);
* @+ k2 \ T% V1 V - delay(300);# B; X' X6 @7 a, f3 o/ Y/ S
- Serial.print(".");
6 {7 T3 u8 k6 ^- [( V - tryNum--;4 B3 v/ W( c/ p4 T% |+ l, B0 v# o
- if (tryNum == 0) {! T& E3 N) c6 s" J
- // 1min
# w/ H3 M2 K z - // ESP.deepSleep(60e6);& Q$ x7 _ L( c7 {$ x
- ESP.deepSleep(0);
% w4 j( G. A' Z0 e+ w c1 ?; N - }# K& m0 b/ p0 u
- }
" P* e- h) v' F- c0 w - Serial.print("\r\n");. F: r% t! j) l9 O5 Z
- digitalWrite(2,1);
# v! e1 q8 @: t5 ~ - Serial.print("IP address : ");1 k! S0 F* W4 ^' p5 l% |
- Serial.println(WiFi.localIP());4 ~1 M2 m w8 y1 p: i; I
- server.on("/", HTTP_GET, [](){
8 j8 K! f5 r4 U. {6 e. R - server.sendHeader("Connection", "close");
. G1 I) Q0 i0 o2 X* E - server.send(200, "text/html", serverIndex);+ g3 C7 h Y9 W+ v, m W5 U
- });
5 j. k; Y- i* _+ s( p. G - server.on("/update", HTTP_POST, [](){, X" v/ \6 ]& k
- server.sendHeader("Connection", "close");
3 Q% P# Y4 `5 b. l# D: X, a - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 G' ?/ a3 h( k" Z) s* i
- ESP.restart();
; d8 Y2 C! d, H- c' k: E! [ - },[](){
0 f8 K3 ~/ g0 c+ Z& p# f: ~ - HTTPUpload& upload = server.upload();
Q- |2 ?, {/ v4 D7 K, `3 }- o0 k: t9 f - if(upload.status == UPLOAD_FILE_START){
' n" j8 ]' U( N# S, b - Serial.setDebugOutput(true);9 \: X4 r; `7 Q0 ]9 E! |
- Serial.printf("Update: %s\n", upload.filename.c_str());2 A3 A I; E' A4 U7 h% v* ?+ l
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 k# Q- u- N5 H W, `' p
- if(!Update.begin(maxSketchSpace)){7 z- C& t& r) s8 e7 i. l, j; G
- Update.printError(Serial);
4 b, G) o- B1 m2 E! X) r! A D - }7 U# W4 z' d+ x8 N# b: w- c/ H
- } else if(upload.status == UPLOAD_FILE_WRITE){$ p0 k" D0 M8 |* k2 g9 c4 ~; H0 U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, ^6 P' S8 D8 J/ N - Update.printError(Serial);6 f6 g: W6 X8 \8 s
- }
X0 v6 Y6 Y5 J+ O2 ?+ u( v/ [ - } else if(upload.status == UPLOAD_FILE_END){
5 l4 b7 C+ z5 m7 U) Z! C - if(Update.end(true)){
. e1 S. Q* J; {$ b# m0 p+ x) p - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, e; d% E* \. t+ D0 P
- } else {+ T* T5 G3 O3 A* b& W
- Update.printError(Serial);
6 T; c! P) q! y* [& ? - }
+ \+ r6 g- P+ H - Serial.setDebugOutput(false);
; o% B4 A: ]( _ v! a - }" G& [, F' f4 s1 e
- yield();2 k2 y3 v: q( w+ S
- }); a4 o$ s" C" `/ Z) |+ j6 N
-
( a+ ~" w7 G5 g1 e' i0 F - digitalWrite(2,0);
9 @, _0 v8 _& z( h - mainAction();+ T1 B5 \* g1 s/ Y
- if (digitalRead(0)){2 A' Q3 R6 K, v7 Q$ ^" Y) w
- ESP.deepSleep(0);
# T3 o+ H7 @/ e - } else {
3 v4 Q. D5 Q5 @" G3 q P0 Q - server.begin();8 ] K3 Q+ `) @' ?, L" a
- } @0 X1 n( D4 ?; a; G
- }- Z" v4 f( {& q& ]3 W. ?' |5 _
- void loop() {
, T3 z6 X- H! t6 A5 a - server.handleClient();# a" c% I0 s' N2 z- l5 f
- delay(1);. L8 i, w& _7 p
- }) n0 @, l2 |. A( A
- String doGet(String url){. G4 p: u" }9 Z
- if ((WiFiMulti.run() == WL_CONNECTED)) {9 I& R# i8 K( s: B K+ b
- HTTPClient http;
, b: z: {* d e& T) P - Serial.println("[HTTP] begin...");" [% y% r( ?, H# ^2 B
- if (url.startsWith("https")) {
& `. O0 I/ f. S4 f. Q3 Y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' h6 V" m2 Z7 T( y1 j$ Q( W8 N1 e - } else {
$ m( k/ Q$ G5 _7 j9 J1 B+ g4 I* N* l - http.begin(url);5 o" E: A; [- w- M3 {' v: }
- }9 |7 a+ H3 p0 [
- Serial.println("[HTTP] GET...");9 A- T, n: }' E0 h( E. p1 O* \) F
- int httpCode = http.GET();2 t- e* f/ g" u0 k' ~+ L
- if (httpCode > 0) {5 d9 S2 q+ c ~; g2 B9 }
- Serial.printf("[HTTP] code: %d\n", httpCode);" U# o D! V+ F9 r& `4 x
- if (httpCode == HTTP_CODE_OK) {
8 m4 }0 Z H2 e$ b - String payload = http.getString();& c/ C/ l& B8 z, W% u9 m7 _% t# J- K1 z
- Serial.println(payload);
* `6 F0 l7 P- `# R0 W3 ? - Serial.print("\r\n");
( i& o! b8 I3 k4 H# R3 X - return payload;6 Q. a: @/ @1 F6 Q. V0 a' Z
- }7 i) \" |- ]! r7 O+ u& r
- } else {
6 d) k0 O. [& I1 C$ ?+ X - Serial.printf("[HTTP] GET... failed, error: %s\n",. H+ f' U- z. H9 i! e1 k
- http.errorToString(httpCode).c_str());: B. {; t! d9 w- q0 i8 v; f4 |
- }
7 g+ o! _# _# n/ } - http.end();
" A$ J" f% A: o" | - return "";
2 O1 |* o: @/ k: K: k/ z - }/ ] u7 F( j3 z7 \, u
- }
; f0 Z$ t) g! ^7 c* j! w - void mainAction() {% u) n1 \7 S( x8 N2 b; U. L" n1 I
- // 发送请求
' U. `" J! r% z7 K3 T9 o - doGet("http://google.cn");
- d7 Y3 d" ?2 b& r% ~ - }# ]8 @7 |& Z9 D0 ]- p! u0 f) p
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