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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)
- X9 M* d9 ]" b: ~, P h- #include <ESP8266HTTPClient.h>( X4 y+ F) m5 n6 F/ l! i
- #include <ESP8266WiFi.h>
- \; U6 g, w2 V" @- Q - #include <ESP8266WiFiMulti.h>
( ?; [9 g2 n% T7 g4 i, l: C - #include <ESP8266WebServer.h>
3 I& `1 z2 X3 s - #include <arduino.h>4 ^6 ]0 s8 t$ _" X7 e# C. V r
- ESP8266WiFiMulti WiFiMulti;
9 c; ~ M& ]% b; v5 U3 q4 c& z - ESP8266WebServer server(80);: K$ K, t$ Y/ _+ x8 k4 a9 B2 a
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";" I4 w+ C' L; ^$ r- c, O% P
- ADC_MODE(ADC_VCC);# m0 C' f- y( n8 ~# D- k, l2 y% E& S
- void setup() {: ?: t8 z; f5 z
- Serial.begin(115200);8 [/ B" c2 |5 y
- Serial.print("\r\n\n");
) ~2 b- l% E9 H6 J6 o - pinMode(2,OUTPUT);
" k; P" x# ]' C$ H% K) E - // WIFI: N+ p+ I- e! ~9 ~+ g5 s( k
- WiFi.mode(WIFI_STA);
+ l' G3 y" w @4 S3 J2 W - WiFi.hostname("Sparkle");
7 [! C' C0 G6 v: W! o6 t+ [% |3 j - WiFiMulti.addAP("wifi ssid", "wifi password");
8 A& j4 z% l3 d9 O" A) n - int tryNum = 15;5 J" F1 D+ m( C/ ]- L" n: {
- Serial.print("Connect WiFi");+ d5 l* c/ Z a
- while (WiFiMulti.run() != WL_CONNECTED) {# z( u9 L8 B+ A
- digitalWrite(2,0);
) g5 H. W% K1 g* N - delay(200);" k' L o. j% v1 O" g
- digitalWrite(2,1);& n) |* h4 t2 u* h
- delay(300);
x' i" Y, e2 }/ m+ S - Serial.print(".");+ Z! m9 z" t5 M
- tryNum--;
% }' \. c f' m/ q- X - if (tryNum == 0) {
' [' O0 {' ~$ v3 r7 t# l* n' w( n - // 1min3 G4 ]) z1 ]1 \0 V2 U& q
- // ESP.deepSleep(60e6);
) g. N" f: O' R - ESP.deepSleep(0);: b( B, h# D0 ^) }- X6 _
- }9 V% Q9 X1 Z. H- M$ _
- }. F9 [. l+ ~& { E0 a
- Serial.print("\r\n");0 g- x* x% m' S* X2 P3 K! J( K2 w( S
- digitalWrite(2,1);$ v& I2 A7 O: n3 L' H# p
- Serial.print("IP address : ");8 D( E, D& U# Z- s/ L/ u: R: t9 s
- Serial.println(WiFi.localIP());
& L3 A* V. G; z2 o - server.on("/", HTTP_GET, [](){$ a' p- y2 N3 {4 A
- server.sendHeader("Connection", "close");
8 R$ h# H. _! ?% M9 g% J- U - server.send(200, "text/html", serverIndex);
* N! D6 q4 j- ^9 A4 B3 U0 \ - });1 B: Z$ Q4 j9 m' t* u
- server.on("/update", HTTP_POST, [](){
9 n( r; E. c* a7 I0 T& W# p - server.sendHeader("Connection", "close");
7 U& d/ O2 Y! X4 Z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 b# n+ _$ {$ N2 c+ v: X$ V$ d - ESP.restart();
: y& A( [$ }3 Y- @3 y" G - },[](){4 V6 Q* Q* l0 N1 }" h. |
- HTTPUpload& upload = server.upload();
7 L0 h# ]3 V" n! `# Y* [1 s9 n - if(upload.status == UPLOAD_FILE_START){
7 `( Y% E! \2 S - Serial.setDebugOutput(true);2 l- T% z! J; l9 c
- Serial.printf("Update: %s\n", upload.filename.c_str());
1 H) p1 N9 o! V3 Q! J - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; {, [2 D8 ?: h' x/ S. o
- if(!Update.begin(maxSketchSpace)){
4 e, ?4 J) P$ E' A7 ^! {% ~0 V$ ^ - Update.printError(Serial);1 W& P" r5 z+ x: }8 W
- }
; i, a& _! B5 |8 ^ - } else if(upload.status == UPLOAD_FILE_WRITE){
- F' y7 f& i+ J. y Q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- U. [2 }( \6 ~
- Update.printError(Serial);* \( s+ R, W& x [& z
- }. K4 y0 [5 x3 T( _, S% I; p; {
- } else if(upload.status == UPLOAD_FILE_END){0 N! x4 q. w3 c( Y( e9 {
- if(Update.end(true)){4 p; O) a+ U5 a, }$ q) h6 e+ ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* L" K. Y% r' Q6 M
- } else {
N _8 T1 W' i# n" v - Update.printError(Serial);
1 t+ V" y L& x) k% B - }
( F; y! c& I1 @8 M5 u - Serial.setDebugOutput(false);/ |+ `# T+ R& x* V- v$ C
- }
/ r# E. }. ~. [ - yield();
0 d- Y2 n8 u; G2 x0 m. P* [. b" s1 D6 O - });: p! w% B1 }+ ]0 w
-
3 [$ g" x6 o! w* q" G - digitalWrite(2,0);
7 c6 u8 N) _: P+ H; I' y3 a' p! D - mainAction();
" s* d: T. `' S' j# I - if (digitalRead(0)){1 L e1 ^7 a d. a) v
- ESP.deepSleep(0);
; m u, E! u3 a+ h9 S1 a% ~) U - } else {
; L }1 N1 t* { - server.begin();# _4 T9 h) L o$ ~: e
- }
6 O9 |; }* F* L - }2 |3 m( a/ L6 _" n6 I* l7 [
- void loop() {
; |4 ^3 a* }) j5 r8 y - server.handleClient();& @& ?) Y ~* W2 o1 b4 d. ]
- delay(1);& t( A2 i3 `( D6 Q8 k$ } }8 p
- }2 {/ G4 [( U9 K7 {6 \
- String doGet(String url){# x2 |" j8 d* x6 _$ k& Z' H
- if ((WiFiMulti.run() == WL_CONNECTED)) {) x+ E& o( ~, C' S
- HTTPClient http;5 y/ s, G7 _# j9 \* T
- Serial.println("[HTTP] begin...");( A+ @2 C9 _5 w
- if (url.startsWith("https")) {8 {! S# |( n t3 R! C, c \
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; Q* G$ M3 S9 }* _ - } else {5 H# c8 [$ U) f: p& I
- http.begin(url);
$ b. X, z4 R* {' W - }
2 v1 |1 g; w$ D, j/ f% f - Serial.println("[HTTP] GET...");
1 \$ {1 f: B) e4 Y6 ?0 o; S* L - int httpCode = http.GET();, b: C! W1 ]5 t1 N; s
- if (httpCode > 0) {% J- m N1 Z$ ?* H# ]3 w8 G9 S) ?& J
- Serial.printf("[HTTP] code: %d\n", httpCode);& ]3 O l1 d0 p5 ~0 [
- if (httpCode == HTTP_CODE_OK) {) j6 R. a, [( M
- String payload = http.getString();
' b- U; ~. l g9 } - Serial.println(payload);- ~! l- N) z+ T' X+ q7 Q; Q8 ?, x
- Serial.print("\r\n");
: l3 ]8 `& x. b S4 K - return payload;! h: \2 ?2 F; T6 ]( G
- }
6 e: x- D- A; q - } else {! I, `9 h/ f! H! w& K1 F
- Serial.printf("[HTTP] GET... failed, error: %s\n",
; V3 N6 `! }- D7 _1 f4 d" } - http.errorToString(httpCode).c_str());
0 i# V7 ~4 e2 i) S+ ~: w4 C8 v - }
$ F J& I6 h4 O/ E2 p$ L - http.end();
8 p( Z+ z4 B! P& t - return "";" t3 Q* L9 o5 s. x: J% E$ M
- }$ a! s4 g, S7 ^
- }8 v& s! s2 ]# v6 _' r7 S
- void mainAction() {
% d3 n K' z2 P3 E2 l: \- ^ - // 发送请求4 p# m, J5 Q- q
- doGet("http://google.cn");
+ a# ^: B+ x9 Z* { - }% @) B; t) D6 ~7 q6 Y* `
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