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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)
! E& [/ k( D5 p+ Q. ~$ d) C- #include <ESP8266HTTPClient.h>4 h0 ?7 N% c$ ]8 X7 U' I
- #include <ESP8266WiFi.h>, v/ o, G" A# t" z- C1 a1 K; ^$ g
- #include <ESP8266WiFiMulti.h>
?" K: e" i: F" @6 ~ - #include <ESP8266WebServer.h>0 Y. ^/ D* j' L9 k; t% s. n
- #include <arduino.h>
- B Q j" L/ O x: Z1 X0 l3 L - ESP8266WiFiMulti WiFiMulti;
6 S v3 L- i6 ^$ a, g" T4 W - ESP8266WebServer server(80);8 @; \# g- Q' W8 C' E, L
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" T3 F* f5 r' @9 I6 v3 C% o - ADC_MODE(ADC_VCC); a: x& ^; H0 y; ?, Q+ \
- void setup() {
" G! m7 N* _* F$ `+ \' `% V) n: r - Serial.begin(115200);
% J. y/ }* p( _+ H - Serial.print("\r\n\n");$ K2 W {# ]- h3 u5 U. x1 Y) ?2 L
- pinMode(2,OUTPUT);; K1 h) F1 ]6 u* k
- // WIFI
3 A V& Q5 M, r1 n; e5 ~4 N9 y, ?/ w - WiFi.mode(WIFI_STA);
) J/ v: u3 F4 A( G( } - WiFi.hostname("Sparkle");, y; R$ P. e7 q, M$ ~1 ?1 I
- WiFiMulti.addAP("wifi ssid", "wifi password");
: M4 z* f) z. v& e( ]5 [1 } - int tryNum = 15;
* `- Q. `. s, }8 t8 w( |) @ - Serial.print("Connect WiFi");
4 W# |# {; B2 R7 I/ J - while (WiFiMulti.run() != WL_CONNECTED) {
4 x) b, p: Z6 Y$ T8 ? - digitalWrite(2,0);
. O8 t' t _, K - delay(200);4 \1 F- S* n% T0 b2 D; i- b- M
- digitalWrite(2,1);7 [ c: }( V6 {* Z5 t9 [9 e
- delay(300);
# h& S& a3 y; X, K U - Serial.print(".");
0 y E% e4 F$ Z: f" ~) C* N - tryNum--;
6 `8 I3 G+ Z& v - if (tryNum == 0) {- U0 W8 g4 ^4 q# y
- // 1min
) j, i$ u) |$ m3 t - // ESP.deepSleep(60e6);0 b/ t. L( h+ g' X
- ESP.deepSleep(0);
6 x3 c* T5 k' m0 ]6 g" h - }
2 q8 P& S5 |" m- r* ~! h |" ]. R - }7 a# [( p3 t! A' T1 A
- Serial.print("\r\n");* E5 Y1 }8 h0 u y
- digitalWrite(2,1);" o* j- `. e. Y/ F+ _6 H4 A
- Serial.print("IP address : ");9 T0 ^# |4 k; S0 h' l0 E
- Serial.println(WiFi.localIP());
# t2 ]3 ^0 m, ~- `0 x! \2 S# t; R - server.on("/", HTTP_GET, [](){
: J2 L% g3 a, o$ } - server.sendHeader("Connection", "close");, z- y4 _- P& X* @
- server.send(200, "text/html", serverIndex);
9 a9 K! U& T! _) h8 k - });# _7 [# g0 f& F% M( ^) d
- server.on("/update", HTTP_POST, [](){
; |& F6 j, Z ~; | S! } - server.sendHeader("Connection", "close");+ q" E3 I% X' _
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 p' o- z% f B - ESP.restart();
& P$ \* a+ G' ]7 M8 ~ - },[](){
, [% ]" N' d: u! G+ Y1 q) a, ? - HTTPUpload& upload = server.upload();0 l% q% c2 M$ q" A. M
- if(upload.status == UPLOAD_FILE_START){) K) R8 C& o% d7 Z, r6 U! C% G
- Serial.setDebugOutput(true);
! h# D0 c$ E/ ~: i) f/ _1 m - Serial.printf("Update: %s\n", upload.filename.c_str());
( d" D1 t- T! n; Z1 d8 D - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 A8 I, z" H4 X" H - if(!Update.begin(maxSketchSpace)){
2 i, s& f7 \- F0 [) H7 S& _! W - Update.printError(Serial);
% G$ g/ h4 f& c) @ - }# W# r# E$ i- b% e, m4 _2 z
- } else if(upload.status == UPLOAD_FILE_WRITE){
$ V* O# W, D/ F, c/ m4 s; r% Y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 U$ P y: P8 s. J - Update.printError(Serial); E3 p# S4 X( |5 {' }2 t3 V
- }5 i* M0 f( s. B- ?5 F9 {
- } else if(upload.status == UPLOAD_FILE_END){$ Z! G0 ]9 N& }: k
- if(Update.end(true)){# j F- @$ {' F) Q$ t. ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: }5 e; {/ P; E3 B( J/ F$ S: U( [ - } else {1 V% M: |4 f3 p3 k) J }
- Update.printError(Serial);2 Q) ^% ]1 L# x: `& d
- }7 T1 W4 O* _, Y6 x: @* w
- Serial.setDebugOutput(false);
2 ]4 l5 B& J% ~) k1 ` - }* k" l" `1 S4 ^5 S) u
- yield();
- l$ B& q9 N6 u4 Q - });. H1 ~& T6 X! p5 g
-
# b% Q6 I9 V* h' G' g - digitalWrite(2,0);
; \" N: q% k2 v. T: z$ h - mainAction();
- d! q# b( p1 _2 {. e3 y6 v - if (digitalRead(0)){
e3 m- k+ }' a9 ^ - ESP.deepSleep(0);
/ e; R+ ]) g" F5 P d6 z( f - } else {: {/ _2 ?/ M: [8 m& Y
- server.begin();
8 ?, ]- F; w5 @; Y - }
& I# p4 _% W$ V J0 U: e# o - }
: } r5 ] y% d( z2 { - void loop() {
" @6 i. }+ c, Y! w - server.handleClient();
s, q- E) l( E - delay(1);
% ], [0 X. G* Q( L1 o4 ?$ g - }1 [+ T/ L6 N* m
- String doGet(String url){1 T& E" w& g/ m) g( c1 U3 U2 A
- if ((WiFiMulti.run() == WL_CONNECTED)) {; i- ^% j5 U1 B& l
- HTTPClient http;
3 ?7 i/ |) q& S+ T: n: f: v, ?: c - Serial.println("[HTTP] begin...");) o) o# d! D5 F2 ?7 t
- if (url.startsWith("https")) {
( F* B' c" o3 f6 Y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
: u+ T# |" P0 Y* b& o - } else {6 G" ]0 D$ W' v& w; R
- http.begin(url);: [. G. X3 E3 v" j: b9 v
- }* t4 U& q, p& |8 ?) E& K' F" h+ v
- Serial.println("[HTTP] GET...");" E0 x: N% {7 b) z! T
- int httpCode = http.GET();. ]/ F* C9 w) |
- if (httpCode > 0) {
, S& {5 S9 [! F% u# L9 N a) x3 e3 t - Serial.printf("[HTTP] code: %d\n", httpCode);
! d) S+ ~$ t" ~# }5 N - if (httpCode == HTTP_CODE_OK) {
" L% J C% t9 d. a0 @8 r - String payload = http.getString();
/ b7 i, r; r4 a* s - Serial.println(payload);
( _. {2 O- k$ ?+ m! D - Serial.print("\r\n");
6 w- t' G0 g7 J9 o - return payload;; b' T- j4 i1 v- `2 x3 _
- }
& E% i/ i9 }2 O. u% {, x - } else {
( T& k3 v) _2 o9 R- G2 e' c - Serial.printf("[HTTP] GET... failed, error: %s\n",
0 [. Y. ?1 l' p' v5 T- ]/ ]. [' Q - http.errorToString(httpCode).c_str());
3 n1 f; L6 A8 g$ E+ S$ L - }. u3 Q! `4 m% f; @9 I T5 v
- http.end();
0 ~# y2 [' p, l. } - return "";
9 E: ]( I, C1 O7 R - }/ ^" ^- [2 K2 Z( L( Y5 H
- }
+ u, }, f& P* v* l: R - void mainAction() {; B, e! h( {$ }
- // 发送请求
8 q2 C4 t+ l9 d$ i1 B - doGet("http://google.cn");
2 Q( J, ?! l6 v' ~# a. A7 ] - }
0 K0 o* A9 o, g. \
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