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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)0 p; ~" R5 D2 a) e4 t9 o, s' B7 k
- #include <ESP8266HTTPClient.h>
6 i5 F: n/ t- V: G2 f/ y& `9 G - #include <ESP8266WiFi.h>) p3 _5 |+ `$ U5 m' }# F
- #include <ESP8266WiFiMulti.h>/ w& C2 @8 C0 s
- #include <ESP8266WebServer.h>
8 J2 Q4 |7 e& m- G - #include <arduino.h>
" `8 N- V" P% W2 M& v* g% ~: v; H* ` - ESP8266WiFiMulti WiFiMulti;
8 A+ n2 o( D; z# M/ a2 e7 o - ESP8266WebServer server(80);: W- W7 N6 y b& Z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 a7 z, b+ K9 S/ S, u% j* a
- ADC_MODE(ADC_VCC);' \, z0 E! }( s6 b; c- K( b2 L# d
- void setup() {
. f s; T S4 ?3 R, A4 _ - Serial.begin(115200);% H8 b/ \4 F# P& P8 s+ P& Z `1 X
- Serial.print("\r\n\n");. X$ F6 ^9 c/ h/ q( u, U9 _" w* o
- pinMode(2,OUTPUT);
# @4 @& h/ o7 U7 [% h4 B( |7 _ - // WIFI
1 B. U3 [' g# b - WiFi.mode(WIFI_STA);) D6 F& R1 I7 L3 H- ~0 N
- WiFi.hostname("Sparkle");- @) x& M+ q- @2 l8 `: K1 M: v
- WiFiMulti.addAP("wifi ssid", "wifi password");
" i. `9 Q' a( f: K* y4 A% U0 c - int tryNum = 15;9 A7 v' O: y8 I$ \
- Serial.print("Connect WiFi");; u. Q# l! w! s7 }
- while (WiFiMulti.run() != WL_CONNECTED) {3 o2 _0 Z' k3 ~) O% p
- digitalWrite(2,0);$ V' t% _% o" M
- delay(200);: L2 h' t# {+ R* S3 R
- digitalWrite(2,1);' J: n" L" h5 `3 a) K' M
- delay(300);
" o) w# s$ p6 n1 e) S/ y - Serial.print(".");
( R J: _2 A! y" ]8 P0 V& b9 m2 f - tryNum--;( c! Y7 w+ w+ ]; B- `* M
- if (tryNum == 0) {) a8 E1 h& l9 a6 h6 i3 T
- // 1min; s: q4 y- Y* b. Q/ m; q7 V8 c
- // ESP.deepSleep(60e6);. A6 B" L t$ r* X7 y
- ESP.deepSleep(0);: @; o {2 J+ j# ^. n% y
- }, U+ h% z9 E' [' n$ P5 F8 X4 V
- }
5 m/ i+ [1 ~, y8 I9 ^ - Serial.print("\r\n");6 b% O; S z( W8 ]9 v
- digitalWrite(2,1);
! ?8 B" `2 u* Q$ }7 |2 u3 R3 ^ - Serial.print("IP address : ");1 D2 @& K8 Q n7 v- ]0 q B/ g
- Serial.println(WiFi.localIP());" Z! U' ]" L/ ]: l
- server.on("/", HTTP_GET, [](){/ g& L) E- g! S% \& o) k% [
- server.sendHeader("Connection", "close");# f4 J' @( i! h9 X; b5 I8 c! e
- server.send(200, "text/html", serverIndex);5 W0 K- l* }7 ?. o7 n) d2 q# ~
- });# g& V: D6 N% l4 `
- server.on("/update", HTTP_POST, [](){, c" C' C% _& x
- server.sendHeader("Connection", "close");# W) Z& w' t7 F& f( M/ J
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# d* T9 l4 z0 d3 L - ESP.restart();. g1 K$ r2 m1 |- V# h% R+ N
- },[](){
# ?/ V! l2 g0 _) p9 T - HTTPUpload& upload = server.upload();
1 w! M* j% X. a8 W. R. M- D9 \ - if(upload.status == UPLOAD_FILE_START){; v9 f4 Z+ t- c9 Q9 Q& k8 n
- Serial.setDebugOutput(true);
8 J6 a) U4 w; W' l: M6 ~8 n" O" S - Serial.printf("Update: %s\n", upload.filename.c_str());" q& O) O* `: \1 p: J
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- n/ ~" }& c4 D$ r9 _* ~8 c - if(!Update.begin(maxSketchSpace)){+ c' H9 j; ] z2 n5 g+ S
- Update.printError(Serial);* n$ o5 ~, `$ N8 y) g' E9 G3 c
- }$ W) R. S& h0 M7 |8 W
- } else if(upload.status == UPLOAD_FILE_WRITE){
3 @: U3 B- M+ d$ v0 t8 i - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 M7 D( E0 ^" `
- Update.printError(Serial);
4 Y% z, f& W2 x% ^/ C w& k - }. d& C9 z' J. w e
- } else if(upload.status == UPLOAD_FILE_END){
2 T1 ]0 H# [# B" Z& E$ K. e - if(Update.end(true)){* c9 s2 L* n+ |3 u* `/ @
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ L6 P3 z" V4 @
- } else {
8 ]& m# l1 [! l9 D' B6 e - Update.printError(Serial);% k: a0 N1 {( h
- }
0 \3 q6 s/ C; b+ K - Serial.setDebugOutput(false);5 ?) u4 U, `: [
- }6 m# k/ y+ n ]0 K% R) [( E
- yield();
& b2 V9 M1 g+ s - });! j% w' {) u' m0 \3 ` I3 K; b
-
' k6 K& t* Z' Z. j0 O" ~ I0 u; z - digitalWrite(2,0);
- a- Y" K F$ S - mainAction();
5 v* T b, y2 a3 Y - if (digitalRead(0)){
' x4 [7 r$ p4 p5 s6 G8 x) R" n - ESP.deepSleep(0);/ X; O! }. n# U l# S' ]
- } else {
+ x2 K6 J, a3 i& K/ S) `& D5 B - server.begin();
4 W6 l7 R# x# B- e$ i8 ? - }
% B/ e- W3 I/ B2 ] - }
+ N# D+ ^( L" v: a6 V - void loop() {
6 K$ P, ` b4 G' {- [8 o8 f) _5 ?6 \ - server.handleClient();
' l7 E6 O% J. B' X6 y; z' v - delay(1);* p1 M) a: c) R8 s' O
- }1 ?9 E) N( {) [7 n; r
- String doGet(String url){
$ G2 p$ F2 r6 M1 e/ k& y# w# m; @; s - if ((WiFiMulti.run() == WL_CONNECTED)) {
7 s6 r" W! d/ n& R - HTTPClient http;& n6 I: }: q) W7 a# N; _
- Serial.println("[HTTP] begin...");
4 M$ N& `' X y7 E - if (url.startsWith("https")) {
2 ?4 [/ P2 u) d- o6 a2 [ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, E* b9 T( L& _1 Z' u& J3 j* `; |2 h - } else {) N9 }9 x) m2 h) b
- http.begin(url);3 z. W( j8 \' y' C2 a* Y
- }
" a( Q; J; @% m7 ^9 n# X3 [! u - Serial.println("[HTTP] GET...");4 ]# R6 i- W. a* s: f8 r
- int httpCode = http.GET();5 v' l x. z, I
- if (httpCode > 0) {0 b3 w' y8 c0 E8 t6 D/ H( k
- Serial.printf("[HTTP] code: %d\n", httpCode);" Z* H: r. G# i- z
- if (httpCode == HTTP_CODE_OK) {& l [( z8 v A' D: e# i
- String payload = http.getString();
* @' q4 r1 Z7 x. ? q) t - Serial.println(payload);
' ?/ [/ f ^3 M2 z/ u" j - Serial.print("\r\n");
+ y- B. w3 b# |7 z2 } - return payload;
! P& i* R) z) _" r2 n2 v2 o3 i - }
# Z- D( u9 I" S* A |. @2 m - } else {6 I/ z. m0 Q5 e2 ?5 i
- Serial.printf("[HTTP] GET... failed, error: %s\n",
& c/ |' Q) p& N2 V: p+ s - http.errorToString(httpCode).c_str());& y3 G8 E( _/ r# @
- }: Y9 H% {8 o- f/ ]8 p0 S' t
- http.end();
1 s6 e* P/ ?6 T6 O% O8 h- G - return "";
1 L' {8 ^: N1 v* [ - }5 H, W( ?, o6 @ q
- }9 t- i1 F0 C% r. j% a
- void mainAction() {
$ y% n: m' q6 P/ U+ V9 s i; s: ^ - // 发送请求
, G' a- {, J! D1 ?9 b - doGet("http://google.cn");! m. v3 Q- X! |6 A8 A( U) j+ D
- }2 b: R+ Y8 |# v/ d6 @
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