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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)
+ m$ ~& j4 E$ ]6 a+ ^- #include <ESP8266HTTPClient.h>$ k, X% K' ?" c; V
- #include <ESP8266WiFi.h>
: L8 ]2 l' J8 O) \% I, n - #include <ESP8266WiFiMulti.h>
- \) e+ B9 D4 A% {& N1 P: ?8 J - #include <ESP8266WebServer.h>0 ~2 j) j; q* k. [( k; G7 r! r- @/ Q1 X3 R
- #include <arduino.h>2 \ D( q& v+ O' n- A1 i
- ESP8266WiFiMulti WiFiMulti;4 V3 [6 U @0 b% ^/ b2 G$ G
- ESP8266WebServer server(80);, l% V( g9 d8 M, y9 r9 k7 T
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( R- w& r1 @4 A, n2 I& a
- ADC_MODE(ADC_VCC);
3 L7 G( z" E1 o$ n5 ^5 R - void setup() {: g! v- l9 P Y$ Y7 L
- Serial.begin(115200);
8 m6 k7 S6 Z! G5 T5 @ - Serial.print("\r\n\n");& X, m4 i7 F8 D! B2 {& k
- pinMode(2,OUTPUT);
. z- t. D" _& i6 B+ T$ ^ - // WIFI$ A9 @5 G1 c/ m# Z# z$ C; \# a
- WiFi.mode(WIFI_STA);/ l+ K k1 Q- M8 w+ o" j6 B: C9 q
- WiFi.hostname("Sparkle");
. s8 P: `$ ]$ [/ A- d - WiFiMulti.addAP("wifi ssid", "wifi password");# _$ W% h% f7 D' z* E4 J/ ^* Q
- int tryNum = 15;
9 K% C4 w# m& M |- i2 \4 G# r - Serial.print("Connect WiFi");& `6 k+ M {4 u; m3 y) C
- while (WiFiMulti.run() != WL_CONNECTED) {5 A# h6 |2 s4 H7 t+ Q$ Y7 H
- digitalWrite(2,0);' Q/ t* L9 [' ?
- delay(200);
$ Y3 c: y- @, e: W* G* n - digitalWrite(2,1);
% N- G3 p+ n% U - delay(300);
! I: X( _; M8 ?3 }% f# y - Serial.print("."); `! X- N" V6 d
- tryNum--;* s) ~9 z, m* V/ N2 _* l
- if (tryNum == 0) {+ G! M( T0 r; M7 ]: {
- // 1min
* q& w" t1 \$ ?. ? - // ESP.deepSleep(60e6); Z- b( [/ V2 b
- ESP.deepSleep(0);
, l% [0 C% q% I4 J; {( u - }9 z1 b2 R& c& X6 d2 M
- }; \8 M N' C, `3 M! d, p% W$ G
- Serial.print("\r\n");, z" _; E: K) {$ E) ]
- digitalWrite(2,1);3 o) O* m3 l; `# x4 p$ j' x: z, D
- Serial.print("IP address : ");
, Z# G+ c* V0 ^+ m" u - Serial.println(WiFi.localIP());
j/ M, i$ n+ x8 E( \, ^' b - server.on("/", HTTP_GET, [](){2 I; g4 Y+ r# ~0 F5 ]
- server.sendHeader("Connection", "close");
) ~) Z$ A# \- G/ w - server.send(200, "text/html", serverIndex);' a8 P, f% h- p: p1 O
- });, ]- ?+ ?/ |" T- B2 t9 F
- server.on("/update", HTTP_POST, [](){
; P4 S E) H% P8 O - server.sendHeader("Connection", "close");
! s7 @* ?! u% o: E - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* ~1 E6 B, e2 K6 g: U% b
- ESP.restart();
, S8 ~4 R* X' j5 }2 M1 V$ ~1 H - },[](){, Z+ @' F$ y' C2 e3 [( p
- HTTPUpload& upload = server.upload();
( x$ A, L, g& J - if(upload.status == UPLOAD_FILE_START){: S4 Z+ _; I" k+ y/ r
- Serial.setDebugOutput(true);
{- a7 y5 _* y - Serial.printf("Update: %s\n", upload.filename.c_str());
7 I$ c# n5 l. P4 ]& V* c7 B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# G% w8 c/ n. t+ q( M
- if(!Update.begin(maxSketchSpace)){
! R9 {2 Y/ i ~. M3 p: x) |8 ^1 B - Update.printError(Serial);
+ y1 e5 m7 U% W9 @4 ^% @ - }
M. m4 |- A) {. P* c3 W - } else if(upload.status == UPLOAD_FILE_WRITE){
* s: q( }( O$ m+ T' T* Z+ a) K - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
7 K9 f. s/ u& }" W( Y8 D - Update.printError(Serial);4 S5 _' w! ?1 _7 Z% z. H7 Y
- }
% O5 a% L* R/ F# K# v+ C- \9 U - } else if(upload.status == UPLOAD_FILE_END){
+ a( A% r5 f, l! A+ i% t3 h - if(Update.end(true)){
/ y. e& f' g$ H - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
1 y5 {/ C* R2 l, V W' c( s: `+ g( T - } else {
2 A5 G9 ]- v+ {+ n: P# O - Update.printError(Serial);
" x( y! C$ X4 H2 P. @4 r - }
8 B; a6 E2 N+ n0 y - Serial.setDebugOutput(false);
6 I$ j/ c/ q) K - }
4 }, H) v* o; y% n- E1 A- ?' U; \ - yield();0 O, ]. V1 H$ g8 T3 |, l7 G
- });
; L# | s# z( N - 1 R. r! F7 U# V6 n
- digitalWrite(2,0);' y8 V. @9 o6 H" {, i# x1 q8 E
- mainAction();' f$ ~5 U% q' _. t/ D9 i
- if (digitalRead(0)){5 |) I0 N! f @/ }9 ^5 F3 ]& h, @. C
- ESP.deepSleep(0);. S6 N+ I$ @, W4 r3 e, }
- } else {
5 j' \% O1 X& k - server.begin();
! X" X: e% S4 j - }+ Y$ G F/ C7 _
- }! N" @: V9 L* \6 E: _ ~- U7 Q
- void loop() {
& s! j* b q n! ~" m4 y- \ - server.handleClient();8 ^0 n6 ?2 q3 t0 E, p5 _1 }1 n
- delay(1);6 n" w0 V _3 A6 i8 T& x, Q
- }: f6 t/ ?7 f5 S" g) I$ K7 @
- String doGet(String url){
5 l$ Y' K/ r4 ^7 Z - if ((WiFiMulti.run() == WL_CONNECTED)) {
: F* G7 y! e4 p% k - HTTPClient http;$ _; e! q3 m6 C6 {% O& l
- Serial.println("[HTTP] begin...");
! [; Q! n X/ v8 \4 Q; ^ - if (url.startsWith("https")) {/ y; o9 y# c% X& \7 y' U
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 [8 {, k4 h4 K- k3 Z0 T$ [, D - } else {: j/ [8 z9 X5 C* N
- http.begin(url);
# E2 G2 ?3 I M6 w6 ^+ e - }
; N: y3 R; Q/ D/ r: \. V - Serial.println("[HTTP] GET...");' E& x. |) h% }1 e) _7 Q/ h
- int httpCode = http.GET();
- s# M2 G- E6 h* L' { - if (httpCode > 0) {4 r9 G* H4 o* Z
- Serial.printf("[HTTP] code: %d\n", httpCode);
- h8 }0 \( T# ~# s* {1 R - if (httpCode == HTTP_CODE_OK) {
6 Z. A. i) ]$ l0 K4 m5 P5 Y - String payload = http.getString();/ R- i& t# M0 U+ R. o
- Serial.println(payload);- @1 v' a3 N+ {# W6 L
- Serial.print("\r\n");
) R9 A( J" Y( S" o# N6 c1 Q - return payload;1 G' Y, N" K, @) c' ^
- }
7 N! K) U" z! O) a* R - } else {
0 A) a- g5 S7 g, _/ Y4 Z8 \$ L5 s - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 I `8 J9 j! d) F0 W2 x" I' } - http.errorToString(httpCode).c_str());
1 V, o" `4 K# M - }% u. P4 o4 U$ `5 U% p C) Y
- http.end();
; G- ^* Z+ U/ \+ R v - return "";
. m3 @6 \7 z( Z& z3 G" l - }9 ?% [* U5 z% w+ N3 g
- }# B3 A: Q- ^$ l6 C' O* y
- void mainAction() {# |) F9 F. R7 d3 j
- // 发送请求
. }7 n6 j3 O5 y: \2 f( _. u - doGet("http://google.cn");' h z' r, d' r' R, a
- }
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