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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 z# x4 T% v) h* ?; n- #include <ESP8266HTTPClient.h>0 {" B7 p0 M N7 K: _* @% k
- #include <ESP8266WiFi.h>
9 ]. K6 n7 u! S* x" n - #include <ESP8266WiFiMulti.h>; n. I7 `+ J5 E5 Q k
- #include <ESP8266WebServer.h>' \( n/ K9 r: h, {
- #include <arduino.h>+ g0 f% W4 i. F8 J. N7 p' ?' m0 X
- ESP8266WiFiMulti WiFiMulti;
: U. y! ?" F* t9 ] - ESP8266WebServer server(80);) \. L1 x8 {1 v9 y+ d) ^( t
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
7 M; b F1 a/ q( y2 Q' J& W: M - ADC_MODE(ADC_VCC);& e9 S$ T/ n/ X
- void setup() {
7 S7 s7 A# v+ V. `) v - Serial.begin(115200);
S' p" J6 g5 H9 B - Serial.print("\r\n\n");, G; O, W8 |7 Z% Z- i: P
- pinMode(2,OUTPUT);
Z$ b- y8 u5 k) ]' E# W - // WIFI
; u2 A) S6 L) ]/ K( U3 Y - WiFi.mode(WIFI_STA);( }) N; {" z7 D: N. {/ k
- WiFi.hostname("Sparkle");8 \/ k. J: d' C
- WiFiMulti.addAP("wifi ssid", "wifi password");
( q$ }, e8 J& @& Q; } - int tryNum = 15;
$ W0 c; Y( |7 X/ J+ c W - Serial.print("Connect WiFi");
* w- Y9 ]3 J! ^+ {: L, `/ \+ p - while (WiFiMulti.run() != WL_CONNECTED) {
X6 H4 k# ?2 z6 K - digitalWrite(2,0);' Y# g$ K. V+ q5 p: Q* I
- delay(200);& q) u& h2 j. Q, O* t
- digitalWrite(2,1);
' _1 y2 D( z# W1 d. p - delay(300);. O9 K/ k6 n. @ N; O- n# A' w S8 A
- Serial.print(".");* l4 t, i X. ^
- tryNum--;5 ^; [ V& _& z4 y8 A2 W
- if (tryNum == 0) {, f4 R9 G/ |( y ?
- // 1min
+ d+ [, `% p7 a' L/ }% k - // ESP.deepSleep(60e6);
* i9 h( \' G9 L% L7 y - ESP.deepSleep(0);, G l5 L7 W3 N. T, h q
- }, ]% H' O6 k& o1 L0 B* V
- }0 l- D3 q; `! ^7 I! M, }! i3 Y
- Serial.print("\r\n");
: a! U& C# O& j& n# d - digitalWrite(2,1);
- H/ K Q* j( ?8 W f9 h8 s! v - Serial.print("IP address : "); K6 E' |+ U& f. M% ^+ p7 b
- Serial.println(WiFi.localIP());
2 V2 c+ {. k3 M+ |! @0 T8 f - server.on("/", HTTP_GET, [](){
# P1 k% U6 I% s- o- B: }+ m8 I - server.sendHeader("Connection", "close");
c2 Y/ V2 z3 f9 u - server.send(200, "text/html", serverIndex);
1 z o# V; p6 h4 c4 p - });
4 Z% v2 i3 i4 h" a3 \ - server.on("/update", HTTP_POST, [](){! ~6 S0 t/ ~0 o. ^( l7 m7 D6 Q" h
- server.sendHeader("Connection", "close");% e" v- c% {7 w
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
+ ?, Y# R3 q2 D8 p" [8 \! e - ESP.restart();
" @7 a! Q ^# c4 W - },[](){
% l! r# _9 ^* W" {4 ~) x - HTTPUpload& upload = server.upload();
+ h1 X/ o" j+ I' x - if(upload.status == UPLOAD_FILE_START){
( o3 y& ?9 `7 R9 q - Serial.setDebugOutput(true);
0 M8 A, x- K8 m: i3 g - Serial.printf("Update: %s\n", upload.filename.c_str());
* ^3 ?' }" n6 m" W( \1 q - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: T8 G& z/ J+ b5 e9 I, j
- if(!Update.begin(maxSketchSpace)){
, y/ w+ x' U% p( M+ N! e - Update.printError(Serial);
. A" j+ U# Y+ l) @" l - }
# ]3 s! n0 u; P0 r - } else if(upload.status == UPLOAD_FILE_WRITE){; c W% H. e7 c% Z) @% W8 J8 Q- I
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 R* z: D7 t' j! e4 d! B% j" R% U& S
- Update.printError(Serial);
& J$ n( V+ R4 ^ T' |, _4 L; h - }! V/ ]( U8 j" {6 M; T7 i7 B
- } else if(upload.status == UPLOAD_FILE_END){. e, J0 X( f/ r7 r4 k
- if(Update.end(true)){
* A6 r* d1 n( q& o! I - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ |! J" b! l2 s( Y
- } else {6 \" s( k, q ^5 \1 I l {6 h5 j
- Update.printError(Serial);
! J: p7 ^) Z. D8 n' U- P8 _3 J - }
0 `( O- T6 h+ j0 \ - Serial.setDebugOutput(false);5 Y; ^5 _/ N! P; Y: f1 j# U* w
- }& R7 w* `# c7 K. B2 Y! X/ i4 A
- yield();
6 D& T. v# ]5 D" c1 o! G - }); |, y1 U) B+ ]- C0 [
-
2 S9 | t* U! B [ - digitalWrite(2,0);* }0 R+ [+ i2 p3 l( F
- mainAction();& `7 r5 I1 K7 Y6 V
- if (digitalRead(0)){
& i7 F: s6 b6 k! h - ESP.deepSleep(0);
j& X S: o2 f, {. |0 [3 W - } else {9 m# r/ K" b* g( e0 M: e% O7 j! ~7 f
- server.begin();
2 N+ A. m9 x2 G+ V; M - }
0 ?# a- l0 I! B( [/ r6 Z9 G - }
t! w9 F' u$ y8 y1 s& y s - void loop() {: ]9 c) l$ H/ M0 J, M
- server.handleClient();, |( v0 r7 T+ j+ `
- delay(1);
# ?/ u& x, w* [7 Q2 a7 ~; F - }
6 t, K% k/ N$ j( ?; | - String doGet(String url){
6 R. F6 E8 }% X6 j9 r n8 K, t - if ((WiFiMulti.run() == WL_CONNECTED)) {
9 B0 x' |) ^8 ?# l4 a& t5 F( } - HTTPClient http;
$ |6 |, ]: p& U) { - Serial.println("[HTTP] begin...");( `$ u K" o w
- if (url.startsWith("https")) {# F3 w+ Z6 S9 t
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" k* J; M. b. d3 W, ^ - } else {! x) ?3 Z# Q$ y; |+ {
- http.begin(url);& n; F: H% `8 \ M* L% m6 u8 j$ S
- }
4 o$ y D& e% z' t; r8 P - Serial.println("[HTTP] GET...");
3 O! i7 f4 r) @7 f/ a8 p$ V$ S - int httpCode = http.GET();# C1 R" N" d- r* a* T4 I% g
- if (httpCode > 0) {
* @( R) F* W$ j - Serial.printf("[HTTP] code: %d\n", httpCode);5 x( D2 D5 u8 D |5 Y
- if (httpCode == HTTP_CODE_OK) {
1 G( Y. A7 T1 o$ } Q& R3 Y - String payload = http.getString();5 L" O' ~4 R! j, G. `) @) G
- Serial.println(payload);
$ U. o+ v; `3 w2 P' E - Serial.print("\r\n");
; G9 I9 j0 M" W8 a# i- E7 u - return payload;
, F) }% j& q7 S - }
7 N V- w4 a; p! R - } else {* W( F9 i0 _/ W" S
- Serial.printf("[HTTP] GET... failed, error: %s\n",3 L: U$ X `; n* l2 W( ?
- http.errorToString(httpCode).c_str());0 D! ]# v, w% d8 W4 P6 j1 O
- }' v( o7 |7 e7 \! n3 S
- http.end();
/ r7 u# t' O% P - return "";
) z# Z; T+ |1 o* c - }
( A( P4 F& b1 Z K+ z# D: F' I! s: I - } ^; B" }: q" R6 B% B/ }, q9 Q9 E
- void mainAction() {2 R8 [# X4 p$ `5 }: \
- // 发送请求
+ k, U! F- {: |* m' J8 x( h+ D, R - doGet("http://google.cn");
& |/ G" ?. e7 q% ` T' A% q - }
- z, k2 V; d$ e0 }. x& F; M
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