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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)
: O- a5 z+ t8 P( n( f- #include <ESP8266HTTPClient.h>
. Z6 P8 ?. m0 U' y - #include <ESP8266WiFi.h>' n; t+ v3 [, }2 [" A& C
- #include <ESP8266WiFiMulti.h>
1 H: r- K; [' r& r7 ~ - #include <ESP8266WebServer.h>& E7 ~. C# v' f+ g! [0 s& c# U
- #include <arduino.h>
. G$ z" V, v0 B' z: H2 d - ESP8266WiFiMulti WiFiMulti;
+ s- G- @& \1 B# U7 k - ESP8266WebServer server(80); Z* u) F! b- ^' j8 c0 E5 x0 H5 q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# r0 @; g2 ~1 Q$ C$ D - ADC_MODE(ADC_VCC);
3 O# t( z4 w; i7 d, }6 j) R - void setup() {
0 Y. ~' s5 L1 W - Serial.begin(115200);. j d; C( p" N9 _+ `
- Serial.print("\r\n\n");
% r! F+ _" E8 D& N. `' D# x; u/ V0 } - pinMode(2,OUTPUT);- V4 ], k0 C! s$ B- k e
- // WIFI
- `% ]8 N$ L0 {( `) T; f8 f - WiFi.mode(WIFI_STA);
- O4 @# c' C0 d - WiFi.hostname("Sparkle");
+ o0 p& H( x: g- o# r- {3 h) h% T - WiFiMulti.addAP("wifi ssid", "wifi password");
, Q" l$ P' T- |2 A; k7 ]4 z - int tryNum = 15;( V ]; Z+ `6 t5 ^% ^
- Serial.print("Connect WiFi");
( X1 R& C; v- q0 S- i! c9 b; J8 h - while (WiFiMulti.run() != WL_CONNECTED) {
& P1 Z( ~2 F4 v - digitalWrite(2,0);
2 U1 s# Z3 ]3 c* B& s& k- p - delay(200);+ _) R" k# }& V5 P
- digitalWrite(2,1);
5 U+ o' K# j- I' _/ X/ m - delay(300);
7 I ~0 O5 E ? - Serial.print(".");
4 J7 z9 s4 C3 y# J, b - tryNum--;! Y% t6 }) l9 G8 G
- if (tryNum == 0) {
3 }8 k V2 W. z; d6 T) f - // 1min0 D. j9 s, M+ e+ w" E, A
- // ESP.deepSleep(60e6);& n, t2 M ]0 O7 U! E
- ESP.deepSleep(0);* @, A* T; l. `" q0 p4 T
- }- i( G- v: e$ [% x% N: l! \) b4 t
- }
% W! C0 t5 L) l9 Q; ]( g; P9 V; P - Serial.print("\r\n");9 @. Q" |! _, U+ y) a Y
- digitalWrite(2,1);
% J1 K+ [9 u; R* K9 V ? - Serial.print("IP address : ");
/ x' a' k' P) w$ A2 R h - Serial.println(WiFi.localIP());9 y9 g/ B( H- _2 D( J8 a' R
- server.on("/", HTTP_GET, [](){; B( ~+ i3 s0 n
- server.sendHeader("Connection", "close");3 T) _, \, ~( T/ @5 O% @
- server.send(200, "text/html", serverIndex);
$ B2 A' P; [$ i7 Z2 r) G - });
% t' w2 t- u5 S9 B' Z4 U0 X - server.on("/update", HTTP_POST, [](){# K4 C2 x+ O2 h) ~" u
- server.sendHeader("Connection", "close");/ b( i( X6 [/ p! I0 {
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 n/ Y0 ]& B; l9 v, _" Q
- ESP.restart();/ ]$ V- y$ P4 U4 ` S" _
- },[](){2 P' y- b( T8 R% b) F4 L
- HTTPUpload& upload = server.upload();/ O9 J0 H1 K- [/ R1 Q; b" R
- if(upload.status == UPLOAD_FILE_START){
/ P* B% \/ l7 g/ ~ - Serial.setDebugOutput(true);
V1 L( |, D8 H( G0 o: Z. v5 {7 o3 @ - Serial.printf("Update: %s\n", upload.filename.c_str());3 _" {: w( E+ {0 A( x
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% k. @' e7 c$ U
- if(!Update.begin(maxSketchSpace)){% n% _: H7 ?7 @1 C
- Update.printError(Serial);
" N/ O0 s1 p& `0 O' s/ b - }: f% c. C9 a) g; A2 g
- } else if(upload.status == UPLOAD_FILE_WRITE){5 z( t X, L& o4 a' ~7 \. ]
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# B- B S1 C. g1 b - Update.printError(Serial);
4 Q" U6 M% `, n; m' g _ - }& b5 @7 e. |" X3 ]/ S) A* \/ g. W% d
- } else if(upload.status == UPLOAD_FILE_END){
# K$ ^- [6 F V' X! H1 s2 n: N - if(Update.end(true)){ w% v1 J' p( ~) j2 u4 g( D2 p( d
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ W+ y# g" ` d1 c$ y( F6 s0 W5 }3 t
- } else {
* u; r0 w! O! I4 [5 b - Update.printError(Serial);0 L9 q# \/ K& s8 _! `
- }9 S+ ~" ?) Z4 T& Z
- Serial.setDebugOutput(false);0 E* |0 {' w" c' d' i, O
- }; R4 o v( o1 k
- yield();, X/ W* }4 E: _2 C! d' g' y
- });
$ a8 \( j* W# ]8 R5 G -
1 C% t+ c" K7 ]1 [- O - digitalWrite(2,0);- o, P/ y. R0 h( Q$ P) O6 n! F" C0 g
- mainAction();
, r8 n3 x$ h9 f& U* o - if (digitalRead(0)){
* [# v4 o5 t8 [6 a) ? - ESP.deepSleep(0);0 b9 C/ j" t; R
- } else {
8 H7 e# M, b+ a2 ]% v8 c - server.begin();
# W% ~/ \# I, u H; R) ]5 }$ o$ X - }
B8 S i4 e5 Y1 {8 E+ E& N - }
_' i" t' i2 x7 U - void loop() {
" D& f4 n; k" H6 e3 f% H6 o - server.handleClient();# P, [$ t1 m9 Q3 b0 `; I- U4 S& w
- delay(1);
* {2 Z7 g. l' H N - }
5 M6 W& T7 E1 y - String doGet(String url){, ^& z- H1 Y& Y( m; u/ S
- if ((WiFiMulti.run() == WL_CONNECTED)) {) z1 M) T% [( F* W
- HTTPClient http;
3 {1 f2 u3 O8 _ - Serial.println("[HTTP] begin...");
. Q2 B' V$ T, \& R+ K - if (url.startsWith("https")) {1 Q2 M Q! M8 d. w( A6 Y6 _
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
n4 N2 @& T; X# N - } else {
4 h2 h) G) h# z: \; \1 @ - http.begin(url);
' [% S; G/ U4 @4 g; K- P2 M - }
) b) W: P# w+ y3 X/ n/ g# ^# T - Serial.println("[HTTP] GET...");
' D) O2 w0 _ D( Y& A - int httpCode = http.GET();
- c' j7 D% ]9 ~5 y" o% J. m4 o7 m - if (httpCode > 0) {
, N: R" ~" ~* _' T - Serial.printf("[HTTP] code: %d\n", httpCode);+ U; S, K" P$ M6 L- s$ n
- if (httpCode == HTTP_CODE_OK) {. c% C# O( f5 @/ h/ U: d
- String payload = http.getString();
k2 [, [0 a: J6 }* R - Serial.println(payload);0 m7 z7 V$ m1 z2 I& P! X( A j6 d
- Serial.print("\r\n");. w6 d% @* Y5 s* G3 o
- return payload;
- T6 G/ n D* `3 v, i - }
8 g, Z7 e- f7 i) I& O0 `) I - } else {
4 o( z! _' H2 p H3 c9 G& ^ - Serial.printf("[HTTP] GET... failed, error: %s\n",
8 x# O$ {" X% Y4 r" N0 Q; c4 i) r - http.errorToString(httpCode).c_str());
: I! _# Y; w) G0 l7 O% Z - }; F# [; H9 G+ J3 c
- http.end();6 \- d' l* U+ w# m/ ] u( `
- return "";' r- Y& L+ p2 a+ ^) R
- }0 [' G" _7 ]7 I* H: u
- }; N ]2 P' ` g
- void mainAction() {
; ]- U' \; ]4 f% F. t, b - // 发送请求
9 f' V+ Q2 W0 K+ C; T! i - doGet("http://google.cn");
6 k9 l" _: h1 U( A - }6 x) B, F S! B8 M- I& b \
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