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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)
2 h; T( o% X9 Q5 n+ z3 K( h0 g1 w$ [, M- #include <ESP8266HTTPClient.h>
3 A% f6 Q- ^: a. I3 h' d; v - #include <ESP8266WiFi.h>; K6 a E1 I7 F( {0 t4 u
- #include <ESP8266WiFiMulti.h>+ m0 U. E3 L$ x }* b9 R" A* r
- #include <ESP8266WebServer.h>) d; J3 H2 i, n9 _
- #include <arduino.h>6 A0 \" T4 g/ ?/ R1 ~* a, F4 A
- ESP8266WiFiMulti WiFiMulti; W# O+ Z) I5 ^* c- t, p4 p& N! ]# b0 m
- ESP8266WebServer server(80);- n& O6 w$ r5 V* r9 N- N* V
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
; q$ c" d0 `9 z$ Y; o6 c8 W - ADC_MODE(ADC_VCC);) ^9 \4 g7 X( q# t3 s( U
- void setup() {6 F) f8 z# J3 z2 @6 m; e2 O$ Z9 f
- Serial.begin(115200);
2 d& y0 [5 U/ f$ O* h( {1 q w; ~$ v - Serial.print("\r\n\n");
- r f J- l+ n - pinMode(2,OUTPUT);; Q2 J3 Q2 a f
- // WIFI4 V2 Z! U" G. n3 O% {: F* T$ I
- WiFi.mode(WIFI_STA); M q! _: a! n; p+ {2 D% N
- WiFi.hostname("Sparkle");
0 [$ P0 \3 ]' y. V( `: f - WiFiMulti.addAP("wifi ssid", "wifi password");
4 o5 r# J u9 ]8 x - int tryNum = 15;
$ t! s) X% V) z - Serial.print("Connect WiFi");
2 d+ p( k/ Q$ r% n6 K) N x# e - while (WiFiMulti.run() != WL_CONNECTED) {
+ v5 M& V3 M: {$ o z4 ~ - digitalWrite(2,0);
* J/ i9 d6 u' O6 ]; h - delay(200);9 T4 h! H, d' _6 I. ~
- digitalWrite(2,1);8 V; S2 j) ~5 ?7 E
- delay(300);
# K+ H* P _( \7 s e/ n - Serial.print(".");9 |& ]" q! i; v I, r% ~
- tryNum--;
7 d! w% Z0 ?8 Q' p% h0 s/ N; K' ~ - if (tryNum == 0) {/ Y7 h/ Q" Z5 u1 V- [, b& e" | p8 E
- // 1min
- }) [4 J9 @/ l - // ESP.deepSleep(60e6);, y/ a* D4 P `( O7 Y9 J }5 a( U
- ESP.deepSleep(0);
a' g M7 c" ~7 f$ j5 \8 w4 G, X - }
4 G) {+ A, [- @- u/ t - }- s1 B8 r6 @ U7 W$ d3 G
- Serial.print("\r\n");
* k! i6 j: y+ e& ?+ v7 d: V - digitalWrite(2,1);
5 q7 s: _) `* E; P- {/ q6 c - Serial.print("IP address : ");* B v( }3 H" ~, o! G; A
- Serial.println(WiFi.localIP());" X5 ~, r+ z; V# ]$ t$ @: K
- server.on("/", HTTP_GET, [](){
5 }: V8 F7 y# [' C* s - server.sendHeader("Connection", "close");
* }; a- A: a& @& ^ - server.send(200, "text/html", serverIndex);# k# g! ]2 V% ?& E% `- g
- });, t" M0 y/ v4 N8 ]+ [
- server.on("/update", HTTP_POST, [](){
- e! i* D; E! M( m; C - server.sendHeader("Connection", "close");5 Y! W0 p. g" k
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 C+ o2 p7 o/ z- R% A
- ESP.restart();
2 m8 G! k% t: k - },[](){
( z2 a% ^5 I$ F/ K! I( p( [( ^3 C. | - HTTPUpload& upload = server.upload();& h5 U# }. O* V# V
- if(upload.status == UPLOAD_FILE_START){
- \1 T Y3 X# I- y( f8 b - Serial.setDebugOutput(true);. O# n% B2 k, F9 \
- Serial.printf("Update: %s\n", upload.filename.c_str());
& p; P, h7 ^. M! l - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 K* g" o' `0 `% c+ D- n: \6 n! k1 m
- if(!Update.begin(maxSketchSpace)){
W& c8 Z6 Q9 i' g% k9 V7 j& [) t - Update.printError(Serial);
3 L E! {" d( e - }
; _; _- A, x4 i( { - } else if(upload.status == UPLOAD_FILE_WRITE){" a- E* O: W+ K9 Y" W" @/ @; o1 s
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* X* p& h/ ^9 T4 E7 d) R/ u
- Update.printError(Serial);
& k' j' {/ h' O; w8 `! K: V1 D& i - }0 h) y) g1 _9 @! E( X5 C% @
- } else if(upload.status == UPLOAD_FILE_END){. |, s6 h- c5 f
- if(Update.end(true)){
5 J& N# F5 S2 ?" R* @5 w1 P4 ? - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; m% M |+ ]2 L! z, n
- } else {, N, l; F2 \' ~6 M! [+ g, h
- Update.printError(Serial);
. T4 P5 j9 C! K x8 S - }
& k% A% x9 {; \" T' V% S! b3 p/ u - Serial.setDebugOutput(false);
x# F* K! N6 S% m. y3 U - }
3 z$ z u/ y: z& b; b - yield();
3 _! p( n3 f; h - });
% m! Z$ Z' B, [& d -
, k# \- J2 q4 Q$ R8 y9 o S - digitalWrite(2,0);
- {) H* i! ]3 g' U9 x7 n - mainAction();8 l5 U L" P3 v1 A
- if (digitalRead(0)){' b7 P/ f/ Y$ r* u
- ESP.deepSleep(0);
7 v0 F) c' V2 X" d; v/ _7 `% C P - } else {
: d# `; @7 e' W# V - server.begin();
, E# J4 ^# b* K! z0 \ - }
* B4 G9 | E. W: w- F" k - }
8 O6 y; t8 [5 l5 J1 g* X - void loop() {
. f# l, N F m/ t - server.handleClient();
7 { I6 w" M* B0 s1 Z/ }/ } - delay(1);
* N% W7 r+ C4 Q/ ]5 B! _ - }! u/ v( ~4 s I5 @" U; J/ Q }
- String doGet(String url){1 Q7 e2 t! Z0 S. s6 K0 ?
- if ((WiFiMulti.run() == WL_CONNECTED)) {' Z( L$ W. S6 G( R6 K& h4 S
- HTTPClient http;
. v4 H9 ]4 k# o3 }. l - Serial.println("[HTTP] begin..."); L& w/ n( J* o7 J$ Z) d
- if (url.startsWith("https")) {. Q8 }9 { S/ A2 T
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ A4 ^( V' {' k5 U; X; I$ r5 X/ _ - } else {
! f% o9 n# P- f+ B5 j2 `5 P - http.begin(url);
2 |2 j; H4 @. o0 H, w# M/ n - }) S7 Y' m% e. K$ }4 l8 d
- Serial.println("[HTTP] GET...");. w$ z* _' B, h
- int httpCode = http.GET();7 W% Y# p! |- v% Q5 B- z
- if (httpCode > 0) {
1 i- }6 @0 l/ @7 n. q - Serial.printf("[HTTP] code: %d\n", httpCode);; y7 d/ o! ~" E6 {- t7 _
- if (httpCode == HTTP_CODE_OK) {
6 [% G0 w- `. l7 @) m) @" V - String payload = http.getString();; A! f/ O N6 A# b. n# y7 s
- Serial.println(payload);
% Z4 I3 n6 J4 @. Y0 W* Y - Serial.print("\r\n");
# R/ u4 L" G1 N' ?5 s4 y - return payload;
8 Z8 R$ L, \. U4 z5 B" `1 e - }
0 }, J7 b) _7 N9 s$ l - } else {' {! v6 H/ j2 X% L- x+ E+ i/ b
- Serial.printf("[HTTP] GET... failed, error: %s\n",( X8 R. U) ?5 f- B4 [6 m
- http.errorToString(httpCode).c_str());
, r+ S- i4 O$ ] w6 [6 B( U. v - }' {$ v2 P0 B0 o2 Z+ o5 b2 F) x+ {
- http.end();7 J7 g x: ?2 ^+ d
- return "";! O n/ ^& s6 ^* \3 n! ~
- }0 m; h9 Z; w5 ^& [7 e$ d, r- b4 V% [. |
- }
4 o/ ?, g- c1 G0 b9 C! @9 Y* j9 T/ ]9 X - void mainAction() {8 }* A- }2 Y( o9 t
- // 发送请求
3 H R0 y, M0 |3 M" n7 v - doGet("http://google.cn");4 M7 J7 C" `* L. y0 h; c
- }& H$ G. ^8 C9 h" i3 |% ~' `5 L! L
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