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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 L! v; V' @2 U+ {5 y! v! _' t( s6 j ]- #include <ESP8266HTTPClient.h>
& I9 ^/ \8 b7 q4 J0 |& N' n- L, ~ - #include <ESP8266WiFi.h>7 |$ s0 j- n2 T8 P+ X
- #include <ESP8266WiFiMulti.h>
2 X1 V" t( p+ {0 v; w - #include <ESP8266WebServer.h>* r* `& ^0 p8 E
- #include <arduino.h>
; |" b* g0 g% O$ h; G& J L - ESP8266WiFiMulti WiFiMulti;
9 ^; p6 r7 u" p: ~ - ESP8266WebServer server(80);, ~$ i' L7 m) F/ \
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; e y/ D) t. a$ l3 j1 b
- ADC_MODE(ADC_VCC);! L' c$ [$ ^0 k* R, g7 a( U4 j0 G
- void setup() {
) S2 Q/ h( ?1 f6 k/ U - Serial.begin(115200);
+ F/ t7 W! A! q - Serial.print("\r\n\n");$ _$ W: h3 J/ T u9 v4 l- B
- pinMode(2,OUTPUT);5 x, @1 }2 W2 r) W3 K4 S
- // WIFI) L& f" o& ?% A$ Q% f
- WiFi.mode(WIFI_STA);" F' m5 V0 n* E+ e4 O. O* ] n
- WiFi.hostname("Sparkle");
% l5 b4 k) z7 E% h - WiFiMulti.addAP("wifi ssid", "wifi password");
0 D$ @; l3 s0 _ C - int tryNum = 15;
) u; _& o( }" e# y: q* i - Serial.print("Connect WiFi");4 P/ o) Q8 A1 A2 I: I1 m
- while (WiFiMulti.run() != WL_CONNECTED) {
% W$ p+ I; D; h I9 `+ r6 e/ w) i( e - digitalWrite(2,0);
, f% F: ]5 {3 f! l - delay(200);
1 t! B- c0 C/ \ - digitalWrite(2,1);, d R% r4 k- E4 K/ A- y) S6 W
- delay(300);5 q2 n) p; Y+ a& t
- Serial.print(".");
! \9 r! @, W5 ?0 | - tryNum--;: h0 h! Y) g e9 n
- if (tryNum == 0) {
8 }& a0 V$ O2 S+ a5 m# u% M - // 1min
$ C- D3 s+ `) O5 i - // ESP.deepSleep(60e6);$ L# b2 E8 m% U8 Q3 t% @
- ESP.deepSleep(0);
7 y7 Q4 w- n! ^! z8 r; s- E3 p4 T, R - }
: v& t6 y: V, s* y7 G* o+ M - } S H$ e3 z) l. }1 p, c
- Serial.print("\r\n");
" H& `3 N3 e( ~0 \ i" [ - digitalWrite(2,1);$ G4 e5 l2 i* e
- Serial.print("IP address : ");+ Y9 I! g, {' ^- ?1 c
- Serial.println(WiFi.localIP());, B' s( Q# R# _- Q
- server.on("/", HTTP_GET, [](){% l7 m; G$ J+ ?- c! m: J/ H3 y
- server.sendHeader("Connection", "close");. ~( e7 W; M2 ~5 D! e3 c2 Q
- server.send(200, "text/html", serverIndex);$ V0 c, V! O9 C9 B* G4 y% l
- });% N: e5 i% U j/ P+ B; z9 C9 f
- server.on("/update", HTTP_POST, [](){/ |/ P/ V: [: d
- server.sendHeader("Connection", "close");
7 {5 B# E- G2 B9 g" o8 w) B/ v9 Q8 ^ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 r& [+ t8 Y4 N6 T - ESP.restart();
) S! C" \/ h8 ^) l - },[](){
6 n( M1 Z1 ~) B+ {6 B+ d - HTTPUpload& upload = server.upload();
3 U+ E. n, C( b" x- h6 k9 x - if(upload.status == UPLOAD_FILE_START){' i R. Y: \) y* ~
- Serial.setDebugOutput(true);7 F* G% @# }! b9 x. o
- Serial.printf("Update: %s\n", upload.filename.c_str());
) X$ F8 F N) K7 R& d* V p - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
) D& D$ j& A8 o7 M/ I$ c9 P8 j, _ - if(!Update.begin(maxSketchSpace)){& W8 H. Z& M( {& E- S% P& _
- Update.printError(Serial);
# B3 Y$ b% Y8 h3 ^* W* A - }
( Z- O3 j: ?3 h6 _2 P6 i2 y4 o - } else if(upload.status == UPLOAD_FILE_WRITE){
7 ]" @& `) P; r8 q' g - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" i6 u) p- X' y# o5 w3 t
- Update.printError(Serial);
: w6 p5 _$ y( y8 k6 e" J, s% E6 v - }3 H, j* M; y' h4 \
- } else if(upload.status == UPLOAD_FILE_END){
) u% {) u" w& d# Z - if(Update.end(true)){. o0 T& d; U. F3 |
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* w2 H' n+ Y, F% d& H: S' X3 Q
- } else {8 j- q L U# m; U$ j
- Update.printError(Serial);
- n& R k% E0 n/ B% x - }
: A, k0 q( Y6 Y) ~5 y0 V" Z - Serial.setDebugOutput(false);
6 V1 H1 e- y, g3 C0 ]; K - }- I! }8 A1 o, ?5 i1 s
- yield();
2 C- `, i+ W: ? V - }); C% H- s+ a% {/ V! M. Q- V- q7 F1 J
- . Y1 m1 E. \, Y: ^% g
- digitalWrite(2,0);
1 t7 b1 n6 Q" A, Q/ @' G - mainAction();0 f* b ^/ X$ T' q' b. Z8 c8 {9 T' @
- if (digitalRead(0)){
7 }3 Y& X$ J# \ - ESP.deepSleep(0);
5 P" q3 S q2 [4 F - } else {
( |% S& j \. r3 {& ]9 m9 U! _ - server.begin();, R9 s k) ~* Y6 ~$ {
- } y$ g3 l& @- v; j- ~
- }# G3 {" s$ u4 c# S: T
- void loop() {6 j, E; s2 U \! g1 v' l) u& O
- server.handleClient();/ `" c- E8 g/ v5 V2 k' u. v
- delay(1);5 K2 O: D/ m$ \" |& P0 c
- }
/ Y. v m0 p2 E8 e8 u7 l6 V% b - String doGet(String url){9 O/ g, `. S3 d) Y
- if ((WiFiMulti.run() == WL_CONNECTED)) {
* y' q9 p9 S% K: j - HTTPClient http;
0 m0 I+ j1 b1 k+ w6 s: g; J - Serial.println("[HTTP] begin...");$ Y: }6 K9 q8 [
- if (url.startsWith("https")) {$ s8 R6 C$ ^; m9 m0 A. `3 R8 c1 R
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& V* z ]; w% O8 f
- } else {
* G% n7 B& h$ }4 t8 t - http.begin(url);& |; P& g( c! k! q, }2 x: [8 y. D& z# i
- }' R+ _0 n6 \ C( s5 t7 ]
- Serial.println("[HTTP] GET...");, C+ S7 l2 J8 a6 f. L! o( {) M
- int httpCode = http.GET();+ q( R: s: M7 C1 K% u5 H$ G& F9 ^
- if (httpCode > 0) {; G8 i" e5 u* I) A' t2 G! Y" [
- Serial.printf("[HTTP] code: %d\n", httpCode);4 x, d4 h% G5 @( L8 n8 c) i* d5 {- N# p
- if (httpCode == HTTP_CODE_OK) {7 d+ I. W0 t" p9 b7 g
- String payload = http.getString();
; x! Z( A; @. U \; b - Serial.println(payload);
0 Q: Y7 A; B. Y- e1 M& ?( F% ^ - Serial.print("\r\n");
5 {9 T E: A0 X5 v - return payload;
* U8 v+ u8 I& V0 c" R1 ^ - }" ]' Y: K8 u5 u& j3 c U4 g9 A
- } else {8 [: V0 E0 X8 i% k* l, b; Y# E
- Serial.printf("[HTTP] GET... failed, error: %s\n",
- w5 C$ v4 y# i; t* j5 q - http.errorToString(httpCode).c_str());
9 |& H4 X5 g' `2 d - }
' ^; d+ j) B+ E' C3 b1 m( G - http.end();: K( J0 O4 H/ H4 _+ C) N% }
- return "";4 J% U8 ` U: V# n
- }
' b9 Y1 m4 H( F+ M - }
5 _& v& N+ o, N - void mainAction() {5 f6 R# A- T9 `" y' Z* n
- // 发送请求/ T% j* c3 R# {# Z+ @* P S. j
- doGet("http://google.cn");5 n: e& S) t+ u) j
- }* ]1 J: [& x" ~* G( N
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