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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)
# W0 d" P& _6 {0 C- #include <ESP8266HTTPClient.h>$ _, n* Z* t+ L
- #include <ESP8266WiFi.h>( t/ {" ^0 B2 }. s" H
- #include <ESP8266WiFiMulti.h>/ q/ F7 ?7 r0 W/ W8 L
- #include <ESP8266WebServer.h>' @4 L g; s* a; _ J' Y3 T
- #include <arduino.h>6 y. o' Z! O/ N4 ^6 ]
- ESP8266WiFiMulti WiFiMulti;+ c/ s9 [8 Y) y8 u4 n, p
- ESP8266WebServer server(80);% t6 R0 T0 K0 K4 O
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- X$ x9 x0 e9 G% F
- ADC_MODE(ADC_VCC);. A1 h) _( m+ U' v I" M# u
- void setup() {
$ r0 D8 c( z: m+ ?/ v( l0 b - Serial.begin(115200);, Z+ t4 y( q2 x7 z+ D- N$ R5 D
- Serial.print("\r\n\n");! s% d. a5 _1 e3 ^4 x) x1 k4 ?
- pinMode(2,OUTPUT);
0 d) t* S4 u7 p0 Y - // WIFI
) |9 c( M6 Y" ^ - WiFi.mode(WIFI_STA);( x1 y' n9 u0 q7 U9 t
- WiFi.hostname("Sparkle");( D2 X% F2 r8 r- m( m
- WiFiMulti.addAP("wifi ssid", "wifi password"); A- s# S2 P2 x& `3 N; Y
- int tryNum = 15;
3 j; h( Y6 \$ \' X' z& j( n - Serial.print("Connect WiFi");( R* U9 D9 |) i: r+ }9 r' H
- while (WiFiMulti.run() != WL_CONNECTED) {
2 L! ]6 o# k" n) Z/ X! \$ S& H - digitalWrite(2,0);
. h8 E7 M2 C; [- S2 q8 D) \% u - delay(200);$ ]8 o% @7 W" p" b# \$ X
- digitalWrite(2,1);( N! ~4 |' ^& J5 D
- delay(300);$ ?% w3 z$ n- `3 e5 h' `
- Serial.print(".");( J2 I/ y) H: g8 z
- tryNum--;7 X; o: x6 O. N# M6 P. m/ d& H
- if (tryNum == 0) {
* _9 d4 J1 s8 ]9 P% f _6 Q/ Z - // 1min
. y1 i( b6 A0 T1 I: l - // ESP.deepSleep(60e6);
6 _8 i3 n3 \. O0 M. r! @2 J - ESP.deepSleep(0);+ C- j& O- y% {% c4 D
- }9 l- [; s: m% d- |4 I5 k* n* P* l
- }
w! i5 @2 ~2 }: {2 e - Serial.print("\r\n");
7 L" A, k) @/ @3 x* M - digitalWrite(2,1);: H% L/ q% ^5 H2 s p& K
- Serial.print("IP address : ");7 d* K7 {+ m8 c! K
- Serial.println(WiFi.localIP());
& [1 |( l! K$ d p/ _) f" E+ U: z' ?: @ - server.on("/", HTTP_GET, [](){4 ^/ G+ q' v2 G; l! ]5 g2 _9 g
- server.sendHeader("Connection", "close");
" o) a' O% I; }, N% C - server.send(200, "text/html", serverIndex);7 P7 E5 R; P2 I9 A
- });
, a' [+ p1 j2 R$ ]# {! K - server.on("/update", HTTP_POST, [](){
" ~8 g- u9 U3 J/ T/ i8 J0 U. C6 v - server.sendHeader("Connection", "close");0 C1 f1 T6 X% N4 q: L
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* L5 B; ]1 ]) H5 z2 Y! h: B& @% u - ESP.restart();
7 ~8 Z3 x& U) [6 d/ s. H% C6 p - },[](){1 j7 f1 u. z' |
- HTTPUpload& upload = server.upload();+ ?: L; @$ w0 u3 Q4 i+ {
- if(upload.status == UPLOAD_FILE_START){9 S) k; P& R9 z0 n; o g& H
- Serial.setDebugOutput(true);
" @3 [6 w3 t+ ]$ U$ P - Serial.printf("Update: %s\n", upload.filename.c_str());5 N0 R2 T! n( ~! B* Q
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ Q4 L3 j- E0 G0 M; `! ]4 a& L
- if(!Update.begin(maxSketchSpace)){
0 w8 d- \' T& x& I0 J - Update.printError(Serial);7 j7 B% q& C! M# M" r
- }
3 D, Y) x) U4 v4 V/ C* W - } else if(upload.status == UPLOAD_FILE_WRITE){
. ~- Z; L! P: q6 d9 B - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, u+ u# P; N8 d2 v - Update.printError(Serial);6 s0 X+ S: C4 \$ t
- }
$ I2 d5 d/ Y9 W0 m - } else if(upload.status == UPLOAD_FILE_END){
% m5 D: e3 W6 a6 o+ \! X+ b - if(Update.end(true)){6 |; }. z- P! v: b* w7 d
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 g/ S3 {8 F: ~5 b# V) x. m" d1 X& z - } else {& h: U6 E& `8 Q" d! e
- Update.printError(Serial);
6 l7 Y1 z7 i1 V/ O - }
/ k7 x# E: n+ N: h% K$ n - Serial.setDebugOutput(false);: ]6 e% j8 _7 S f- _, T) f! w* g, b* e
- }7 ]9 k% ^9 D6 D m
- yield();( z, \3 X- y3 ^! M3 D: ]9 J0 c
- });2 b! o7 [! T% }% X: y1 Z
-
# u+ r- n2 f2 H+ C' J; v - digitalWrite(2,0);
/ P+ ?! ?5 Q' ?- U - mainAction();7 e; r! S# T9 i% y0 v3 W9 q
- if (digitalRead(0)){8 j7 T" y. [! G; U
- ESP.deepSleep(0);
0 X. O! \! h! K! V$ N9 e - } else {+ L$ M+ P# F; s! [- r& S
- server.begin();
k1 j2 R6 V1 {3 g- s; l2 i - }$ ]% H8 x/ K+ t" O3 G4 z
- }; f2 Q, Q, y( _( e: I0 l/ H
- void loop() {3 F+ o7 O9 r. Q. k5 _
- server.handleClient();
7 f! c9 b& F! D" z# t& C r - delay(1);
6 g2 x0 |" L( h4 R - }! L" \$ o. f, d# d; ?2 H. R9 d
- String doGet(String url){
: W, _, u$ W. n9 G e" X8 u {7 S - if ((WiFiMulti.run() == WL_CONNECTED)) {
% f4 k7 D5 t9 }5 G) Q - HTTPClient http;! t* Z5 f" Q# s' ?. F5 b- D
- Serial.println("[HTTP] begin...");
6 |+ I4 Z2 h8 H8 [ - if (url.startsWith("https")) {4 K x _8 O4 U" k) H. [
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 C* K. j7 l0 ?/ v: ^$ S. D! c
- } else {9 u' B) q" J$ |* ?5 W
- http.begin(url); l7 G( W, q6 G% ]0 Y4 K5 d
- }
n4 H( z( c9 f# X I: B0 h, Y! Z8 M - Serial.println("[HTTP] GET...");
! N; P( K' k$ V: d' v - int httpCode = http.GET();7 @( |/ ^& u, C$ H- W
- if (httpCode > 0) {
, q- j' @4 R8 p6 J - Serial.printf("[HTTP] code: %d\n", httpCode);
# V5 c7 O m6 {' V* X- C. F" I - if (httpCode == HTTP_CODE_OK) {
$ e2 d# D$ h! x0 ]5 v - String payload = http.getString(); A- w; R/ D# X7 G9 l
- Serial.println(payload);
; t5 n7 ]# [- d; }6 c5 I4 R - Serial.print("\r\n");
% |$ L7 Y- d3 y- `5 H: k - return payload;' @" p) E/ M- h; Z/ U( M* `" Y
- }( x2 q/ U$ ]; n/ l( ~
- } else {% S. c" l* T. X# Q
- Serial.printf("[HTTP] GET... failed, error: %s\n",
9 V& S5 V" X. Y' \ - http.errorToString(httpCode).c_str());5 G# ]) z% E+ Q: X6 a
- }
8 A( y# X( x* R5 Z7 D7 ? - http.end();; I6 X6 Z9 |/ p" H9 ^
- return "";0 f+ ^' [' @& \5 i0 A$ U/ B6 R- ^( c# u
- }
$ h3 ~4 I3 n+ j a/ z% p1 w1 U - }
# k- I4 \8 t) B5 Q* Y; v - void mainAction() {
2 S& b3 ?6 J+ C$ a& i - // 发送请求4 _- \& J% e/ X/ m. T% T* h. d& v. s
- doGet("http://google.cn");
. b N5 O% M; f - }
. R" L: G; i I. e( B; R$ E
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