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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)3 ]' x& n5 W) |% h' `7 t' _ f" Z* B
- #include <ESP8266HTTPClient.h>
$ a) n, |* N* p - #include <ESP8266WiFi.h>2 q/ |/ z) ]& k7 L4 S
- #include <ESP8266WiFiMulti.h>& p: y; A1 T5 v' I* F& a" u
- #include <ESP8266WebServer.h>
9 W6 K' I1 Z( d - #include <arduino.h>
@: }! S- i1 W - ESP8266WiFiMulti WiFiMulti;
8 e: d1 t5 s4 a/ e) |" G5 w# B - ESP8266WebServer server(80);1 L# X! ~8 w5 `% @) P% c+ ]
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ n" J0 i. f/ N3 n3 Q3 d* c - ADC_MODE(ADC_VCC);6 `: I" }! k9 P% Z" i, ^
- void setup() {; J) W' Y9 g. V$ g: ~2 n
- Serial.begin(115200);
@! V4 l$ o) J9 F3 U/ ^ - Serial.print("\r\n\n");
4 P; J5 s! U4 ^3 k6 M4 { - pinMode(2,OUTPUT);( r8 L$ F* N2 R
- // WIFI, t5 _. d# I) N0 o# ?% }1 `, a
- WiFi.mode(WIFI_STA);
! C- q q2 X4 k8 ~9 H+ x - WiFi.hostname("Sparkle");. g# O& o" _% u: \* I) R( }
- WiFiMulti.addAP("wifi ssid", "wifi password");: G5 g" u7 L! X( T
- int tryNum = 15;
& g1 ~( ~' E! q8 K) f - Serial.print("Connect WiFi");$ G% b3 B1 H3 q4 Q+ C c' L8 r
- while (WiFiMulti.run() != WL_CONNECTED) {
* k7 ^& L, F9 N. `5 i- F4 a& n! z - digitalWrite(2,0);
4 E9 q+ G# G# ^, L& x - delay(200);
2 n' F; g- o" C, c S m! G - digitalWrite(2,1);/ o/ j# s" s- o% B. H
- delay(300);
; V& P! _( t, Z; w2 w, ? - Serial.print(".");
8 A+ d3 {: i" d, d4 X - tryNum--;
. @$ e: o+ _$ H; {# }. {( T - if (tryNum == 0) {0 i0 ?; y0 l N; H" s) J/ u
- // 1min5 D& [0 g) h5 C+ q' h
- // ESP.deepSleep(60e6);' \: v; \4 T9 J) D$ G
- ESP.deepSleep(0);
( D5 G% m0 n& r! i - }
: `0 O. Y- M) I3 v! l: E - }
& R% Q6 j' R+ O+ w' J4 \ - Serial.print("\r\n");
8 T* R6 d1 b2 \9 J0 {: u8 S3 J% ~! i - digitalWrite(2,1);! g+ A3 y" k- J% k/ Y& t8 H
- Serial.print("IP address : ");
6 I* S5 m M8 S4 N - Serial.println(WiFi.localIP());" q$ ?3 ^6 U1 c/ z
- server.on("/", HTTP_GET, [](){( n$ b7 m- e7 {8 e
- server.sendHeader("Connection", "close");: G+ }( e9 O9 P( s
- server.send(200, "text/html", serverIndex);
+ p6 ]" s' j$ V. d$ ^4 u5 t$ Q - });
- @9 p- f. S' n( c9 j4 K - server.on("/update", HTTP_POST, [](){
2 j: g6 @$ d' [( n0 u - server.sendHeader("Connection", "close");; L1 n( I B! t
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' d$ M( z) x0 W( A; v k1 a" Q; a
- ESP.restart();7 K9 d; s" z# E
- },[](){* ~# ?/ j+ [1 z! H3 Q
- HTTPUpload& upload = server.upload();
% N0 R m6 j9 P# K0 W! ]9 i - if(upload.status == UPLOAD_FILE_START){
% k3 S6 g) R( F1 B; J - Serial.setDebugOutput(true);2 M1 h) Z7 f, G6 K- Q3 f
- Serial.printf("Update: %s\n", upload.filename.c_str());
. {8 a m# w. E% G+ D9 ] - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ a2 {6 W) O9 g$ V. u
- if(!Update.begin(maxSketchSpace)){; s9 W4 C8 I* [
- Update.printError(Serial);
2 {- ^6 K9 }- F. b Q, C4 P. T% O - }7 Z! U, ]# z/ \% p. C
- } else if(upload.status == UPLOAD_FILE_WRITE){
& H+ l4 R: c# A; Y/ z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" W' U$ }2 ]9 S# C& w6 M - Update.printError(Serial);
* @/ H& D* B9 P6 S - }* b3 k7 l O1 U& ?# \+ G& Y+ G: p
- } else if(upload.status == UPLOAD_FILE_END){
) U" o }3 b( t# s/ j& j - if(Update.end(true)){
; R8 C, {/ U1 F0 _ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 I5 K# K b/ X1 o - } else {
0 x7 C) o( Z' ^1 q( w q - Update.printError(Serial);, r. M/ ?# q8 u* Q2 M
- }
9 X! x" M- n" I- r: H* B - Serial.setDebugOutput(false);
5 q- T& N/ m( i( u9 T1 l - }7 V' Y/ s9 p. a* d5 Y- k. l
- yield();7 }0 w) L- `8 K; A& c; W) O+ E: ?
- });
" t q8 \- v5 m; O - & e/ e2 R. E: |( I1 X
- digitalWrite(2,0);( c: \) f& r N
- mainAction();6 I1 i/ n) q/ v; U( c$ Q y
- if (digitalRead(0)){4 q4 ]3 y; ?& c; t
- ESP.deepSleep(0);4 X. P6 V9 J$ ], w% ]1 q
- } else {
; ^+ O; `6 _" S I T" W - server.begin();$ e; `! W) \! `9 f. @ y
- }, K4 |# P0 M2 e( W# m& P: ]( W$ X$ u' q
- }
; N1 c( u- F5 c# r$ M0 U - void loop() {
& a9 K! m( M6 s, C& n( d/ T - server.handleClient();6 x# |# s8 _$ P, H& ]' w& ]7 j
- delay(1);7 m% H1 Q( a9 z5 B( h' M; u O
- }) H% h! h' A9 ~. O3 t# N
- String doGet(String url){. j0 A+ {1 I! I8 k" z3 ]
- if ((WiFiMulti.run() == WL_CONNECTED)) {
" h' ?1 N/ [3 O2 \* G' }' @ - HTTPClient http;
6 g X# j _3 t! }9 M - Serial.println("[HTTP] begin...");
) `9 D) ^# ?6 ~, @# O - if (url.startsWith("https")) {
$ K( j2 U# ^6 h# v- v& v - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 @ ]2 K0 @: e9 A - } else {
- b/ t1 o+ e0 ^6 W1 H, S5 c - http.begin(url);, E' p0 _& L" g4 ]: U; x+ }- ~
- }+ b( T# A `3 w: s$ [$ ~
- Serial.println("[HTTP] GET...");
2 f6 I: G v0 E4 { - int httpCode = http.GET();* j- N' r2 a1 a! `+ o' @
- if (httpCode > 0) {* ^! ~# i! r4 w) x
- Serial.printf("[HTTP] code: %d\n", httpCode);
' y) }- o3 e8 B5 j4 P0 M+ i$ O - if (httpCode == HTTP_CODE_OK) {
7 R! P& k6 C. h( \- u( q k - String payload = http.getString();" L1 C! _8 j6 N0 M( J" U
- Serial.println(payload);
y' R. \+ C- V; E/ P - Serial.print("\r\n");9 t2 e% ^% V7 A$ f
- return payload;# g F: x4 m% M
- }
" ]+ t: o& z) @& [. h# C, B - } else {
" f/ e3 p O) A) j9 ? - Serial.printf("[HTTP] GET... failed, error: %s\n",9 `: h/ a$ g! G' P: v- |
- http.errorToString(httpCode).c_str());
% C4 l3 |0 h$ z' K( b, t' s - }
. G7 [0 O7 u$ }' L' r - http.end();3 J! A4 i2 d5 y6 [/ O# [- t& T
- return "";5 B; n% c) O6 Q$ B( q0 w$ \/ Z, ~* R
- }
* v5 [0 O, t# O: L1 T- {+ ] - }
1 Y7 }9 N& p; n( {/ N- P5 X1 } - void mainAction() {' n; R/ G7 j: f
- // 发送请求0 Z4 h& F" r# R. L9 {3 v: I: z) y
- doGet("http://google.cn");, ?( a% j+ E2 x* P+ n) B
- }
! `( A% y' Z# `) M) x: c. J
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