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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)
; u- c: W- P6 ?- #include <ESP8266HTTPClient.h>, f7 A. p0 h9 ?+ C1 v+ c
- #include <ESP8266WiFi.h>, k- y( c9 G# k+ E e9 I) s; ?$ F
- #include <ESP8266WiFiMulti.h>
8 Z% F& y+ P$ t; c - #include <ESP8266WebServer.h>; l/ O6 v2 Q8 S5 ]0 U: Z" b4 }
- #include <arduino.h>! x( g( m. N M# G
- ESP8266WiFiMulti WiFiMulti;0 g( O1 F v1 a( |: n: o
- ESP8266WebServer server(80);
% g% v: x, F' s0 g( o: ~0 o - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: t3 s0 n0 l* }7 ]$ D
- ADC_MODE(ADC_VCC);+ n0 b" J9 O2 H8 \6 F9 v
- void setup() {9 N, ~. U. L4 g5 F
- Serial.begin(115200);
; F, L* m% L: ^+ }. _ - Serial.print("\r\n\n");
9 l+ l. t6 i0 i% F7 E. Z - pinMode(2,OUTPUT);" S9 s8 B) N+ @$ V0 x
- // WIFI8 g7 p3 ` p' s" I" R
- WiFi.mode(WIFI_STA);' q& v- A, Y1 y1 Q# o' h" d
- WiFi.hostname("Sparkle");
# {1 P& c% f x8 c - WiFiMulti.addAP("wifi ssid", "wifi password");1 a8 d r4 I$ O& E- A2 o/ `# s
- int tryNum = 15; ]! q/ v9 g8 b4 X8 n, o% \9 E
- Serial.print("Connect WiFi");4 O. S. k- {) B, Y! p; a6 l
- while (WiFiMulti.run() != WL_CONNECTED) {: U: \1 o4 X; v
- digitalWrite(2,0);
# B w8 Z. I3 s9 q. m - delay(200);$ M1 Z: R( i! s/ n' Z* B# v
- digitalWrite(2,1);
) X: G0 `, i! i0 ~ - delay(300);! b ^: Z ?3 e5 ]4 \$ r; h
- Serial.print(".");+ C+ o0 C% N5 C W4 a
- tryNum--;
0 C H# w6 N. v7 j" ~" S X5 Y& r - if (tryNum == 0) {
|* _4 U5 i/ g7 ^2 Z- d - // 1min
# E% n7 t7 B9 B" q3 ^# S* f - // ESP.deepSleep(60e6);
6 p. T- @3 C3 P3 w8 h2 d - ESP.deepSleep(0);
. B$ }( h9 \" l5 E+ h! x7 q1 y - }
6 q: `" W( p8 o, ]$ E v& m - }
/ n) Q4 r* ^4 A/ n; k9 x9 | - Serial.print("\r\n");
' q, z* m+ o% I7 G0 v - digitalWrite(2,1);! B+ X. j3 R7 I: [) \) @/ ]
- Serial.print("IP address : ");$ K7 [% j% y9 I+ n+ @9 k
- Serial.println(WiFi.localIP());
8 i" L9 h$ _4 @# e i7 c7 | - server.on("/", HTTP_GET, [](){
9 R1 j/ z# r5 C b2 J - server.sendHeader("Connection", "close");* B7 v% u+ x. L0 T
- server.send(200, "text/html", serverIndex);' R% h# L3 ?6 h; A
- });4 t$ e, ~- o. M) Y0 l" y+ s# M
- server.on("/update", HTTP_POST, [](){& [1 [ \- ]7 H( D* G$ K
- server.sendHeader("Connection", "close");
% ? |# x1 z u& B5 S& G1 e9 X' O - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 ~1 `* p1 i9 v* L- k3 d - ESP.restart();2 |1 k$ N i" z2 ?, r
- },[](){
" [- j- U& ~; P, m - HTTPUpload& upload = server.upload();# g2 t- S* ] ?# Y+ g$ R* U& Q/ h
- if(upload.status == UPLOAD_FILE_START){6 e# {2 W+ D' k3 d, v5 M. u
- Serial.setDebugOutput(true);
+ ]8 L; f, b( d - Serial.printf("Update: %s\n", upload.filename.c_str());! q/ p; {7 G2 i' \
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;7 a2 t! q7 w. l: O [9 F& _
- if(!Update.begin(maxSketchSpace)){
6 w' `+ g; v9 l2 y$ W9 D - Update.printError(Serial);
& l5 V* c/ C5 i! B' T3 E: Q, \5 U. f - }
4 ?) U" c& q9 C& d, h$ j - } else if(upload.status == UPLOAD_FILE_WRITE){4 s T1 T% @+ P# g! Y9 E
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 {, N& @! Y% N2 Y, V
- Update.printError(Serial);
& N' g [+ j3 R - }% @8 l6 Z9 y; z" F3 g v, ]
- } else if(upload.status == UPLOAD_FILE_END){
: l4 ?4 } Q5 g' i: F# h' K! F - if(Update.end(true)){
1 }" F/ I% ^2 q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ v3 v! m+ i, t e1 s, J( z
- } else {# c" k% ]9 @2 U/ N& r/ L
- Update.printError(Serial);
% L7 j; o. W7 }7 X) w - }
' V8 `9 X' S& n5 V! ]5 r - Serial.setDebugOutput(false);
% j( V& f M6 S& ^ - }$ Y& }3 t7 j8 O6 ~- e; l
- yield();' o K" w! n' Z Q! E
- });5 ^; T: w. r6 k6 }$ y
- / N) z0 X. @2 v& w1 g) `
- digitalWrite(2,0);
1 Y5 t ^' x8 A2 O - mainAction();% @! O$ l/ q( A& b9 K# ]
- if (digitalRead(0)){
6 ]& B; ~0 q: H [) M - ESP.deepSleep(0);
* h: O# `6 P$ `8 i2 ^% | - } else {1 }- [# v/ y( x: u& p
- server.begin();- p3 X9 x! c: t0 k
- }% F% N" p9 e( K: Q5 E% t! M
- }/ b9 [: ^, F( o) i
- void loop() {
, {) C2 G. S* _. t+ i# x$ u. h - server.handleClient();% o) W; e" f$ ^* b* s7 Z
- delay(1);$ ?7 ~+ {6 U+ f: \, [
- }7 _7 h! Y% x: n0 T' O: V
- String doGet(String url){
, X4 q6 K2 b3 S y6 X9 M8 e* @ - if ((WiFiMulti.run() == WL_CONNECTED)) {2 O0 t- s0 W. ^
- HTTPClient http;7 u/ n: |8 b. f- J1 x! h
- Serial.println("[HTTP] begin...");; C+ u0 b$ K1 X3 {& h1 Z2 o) i
- if (url.startsWith("https")) {
1 y3 a7 q: x0 o: n# g& a - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; \6 M% j3 v/ \
- } else {# o8 P$ r# b$ r. C# c8 U
- http.begin(url);
3 `4 h( H1 g/ f0 E - }
+ c N* y9 h+ C6 [/ K; \ - Serial.println("[HTTP] GET...");
1 ]9 O% L3 W6 \/ t1 z, k' L$ q- Q - int httpCode = http.GET();3 b/ y# g ~" ]/ A" @6 u
- if (httpCode > 0) {5 H' H/ n; w6 N- ?/ ?8 B
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 z' v! \* a: O4 N0 U# i# j/ f" Q z, \ - if (httpCode == HTTP_CODE_OK) {: G; b) f$ A U& F
- String payload = http.getString();, w W% k. i5 L
- Serial.println(payload);+ _" k$ t$ g9 J% {: A0 m5 z/ x
- Serial.print("\r\n");
0 Y$ a% h- V) l - return payload;
, ]9 r( J% j! P$ l! o - }
+ ]3 \6 b8 X# t! P - } else {- m! G s( m+ b7 n" E4 p M
- Serial.printf("[HTTP] GET... failed, error: %s\n",' y1 y; N0 ^ V' Z* p+ G1 |
- http.errorToString(httpCode).c_str());
2 o$ ~2 F/ F) N8 I- I0 v - }
* a$ V z3 D0 m6 |' l9 u" ~ - http.end();
0 \; d& L3 _: @7 w, j- |+ q - return "";" ^" i/ w4 u; F6 v5 E A; y4 v
- }
+ S3 u0 @. l9 c+ S' F+ _ - }
, c `, ^% G3 _ - void mainAction() {
1 a/ G0 t8 d$ T8 N - // 发送请求
8 T: Y$ @) ?, g6 S/ c2 ^ - doGet("http://google.cn");' m+ i& |" H; x2 _+ c T9 m/ M
- }5 _2 a# I* Z) o# M2 z$ B
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