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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 T6 E: p" }/ ^: w' G8 q, D- #include <ESP8266HTTPClient.h>
7 }. D2 U I& ~3 q8 K - #include <ESP8266WiFi.h>
& a" |" w% \( p( c" v# g - #include <ESP8266WiFiMulti.h>
$ F; T' x+ h, |& L - #include <ESP8266WebServer.h>
) p9 K4 F' L% R, d - #include <arduino.h>$ \) P: s6 _# [8 L3 Q
- ESP8266WiFiMulti WiFiMulti;. d) M7 u; c$ ~% I
- ESP8266WebServer server(80);. v3 M2 s1 Z; N2 e! O2 z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 l+ M, N- P$ ~' Y7 W7 K2 b4 M - ADC_MODE(ADC_VCC);
5 Y" n5 P, M$ R d0 P1 p' n9 M - void setup() { T% e- w9 v) x J
- Serial.begin(115200);
# G3 j3 T! {: |! e/ ~( W - Serial.print("\r\n\n");
4 a+ ^" y5 ?7 X6 | - pinMode(2,OUTPUT);
Q; K6 q4 ]( \3 \8 B, Q - // WIFI
+ Y, |) U' t: [) y2 m. ? - WiFi.mode(WIFI_STA);5 a8 Z8 i# n, [- u' z: \# m
- WiFi.hostname("Sparkle");
- b3 E# w# i# Z# w5 V - WiFiMulti.addAP("wifi ssid", "wifi password");
2 f& t u8 b6 j s+ E6 W - int tryNum = 15;" @+ r/ G1 Y: i9 R; @2 a
- Serial.print("Connect WiFi");
- R$ {+ s: R0 S4 M9 Y. D - while (WiFiMulti.run() != WL_CONNECTED) {
% r! L- K; s. z5 R - digitalWrite(2,0);8 u; b% j6 t6 w4 V3 v9 b) v+ A
- delay(200);
: R' u* ?2 i6 L/ { - digitalWrite(2,1);
* x. {7 e/ X* w& { - delay(300);
7 X' [ [: {# u; h - Serial.print(".");
6 Z) S' G+ ^7 @7 w - tryNum--;7 Z/ g& i. Y0 P# n7 |
- if (tryNum == 0) {
( n) v: _8 i# ~( X' v, {; }: { - // 1min
5 ?9 U( ] a% d2 X - // ESP.deepSleep(60e6);! [8 s4 O$ Z8 u5 X1 I
- ESP.deepSleep(0);
! C4 d- j2 x9 _% R - }
" m5 i9 `( H2 m; [" l - }2 j6 @# k, E: ?; z2 W
- Serial.print("\r\n");2 u( ^. f0 ], r J8 ]
- digitalWrite(2,1);) D8 q2 v3 o, X6 K0 i3 M
- Serial.print("IP address : ");
6 O g: x+ k3 g8 d7 W+ I! i - Serial.println(WiFi.localIP());
8 r, I8 z9 | W0 |/ ~" a - server.on("/", HTTP_GET, [](){ _$ H \, s) x* M H+ P' f& X! H* C& Q& F
- server.sendHeader("Connection", "close");
- I j. a3 @" N - server.send(200, "text/html", serverIndex);
5 d W5 J. ~7 U - });( I' @& o8 W! M$ Q' o
- server.on("/update", HTTP_POST, [](){
: W1 K) f# I& l" v - server.sendHeader("Connection", "close");
, k2 G. i4 k, N2 O - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' c3 p8 d1 c8 C$ Q9 I- O5 t7 T0 w - ESP.restart();9 l" ^# ]& ^4 N" l3 J
- },[](){9 R. }' [% t$ N1 I
- HTTPUpload& upload = server.upload();9 T$ e! w! m6 l; k& P8 k
- if(upload.status == UPLOAD_FILE_START){
0 A" J/ t1 w: a& |, ?* D+ w4 @ - Serial.setDebugOutput(true);
0 u9 x6 w [, |# G& o1 l - Serial.printf("Update: %s\n", upload.filename.c_str());
$ Z2 r7 P7 a( U+ M1 Q: {* E: i1 o! D - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
0 y8 s" V: G- `( w# ^0 a$ F6 f - if(!Update.begin(maxSketchSpace)){$ i: q- G/ R: N5 O
- Update.printError(Serial);" I s& b! C; w% J: ]
- }
$ V L! I! b: j% M. p7 T6 e - } else if(upload.status == UPLOAD_FILE_WRITE){, |! p: L. x# w
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. E$ p3 K1 e/ I8 E/ T
- Update.printError(Serial);% [( B1 p5 z" j& i
- }) \( F& W' N2 r) I: b, y0 e
- } else if(upload.status == UPLOAD_FILE_END){
( i) g1 _8 e! t - if(Update.end(true)){/ f! @6 o( z- [: Z3 c! z* L
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ `4 o4 o; L+ H0 `
- } else {
! \! ~1 ?( N) Y1 [5 t; r4 j - Update.printError(Serial);
. ^( ~# C% ], d - }0 C y$ f: A( z6 @9 O- S9 X* n
- Serial.setDebugOutput(false);( @! w2 O8 F7 s( _4 p) L3 u
- }
4 u. S S! j0 h - yield();
/ i; Q8 y5 A% a2 q' p4 {8 W - });2 e, M# L0 x& p
-
% x% Y8 \3 W/ z7 O: O$ Z5 { - digitalWrite(2,0);% k A+ l; ]- v+ Q
- mainAction();3 }, I8 b# b3 N3 `) @( l# v
- if (digitalRead(0)){
* V: y- @7 Q T! @: z2 d - ESP.deepSleep(0);
& ^) \: x4 k- v' \; g# v - } else {5 J: d6 B4 z( ^5 a! ]
- server.begin();
1 n, H' g9 G: C2 s0 Q4 u# M/ S# |8 t, X - }8 V: M% ^+ V1 }4 a/ s& \
- }
5 b$ @6 ?5 ~ S - void loop() {
8 T- O- x3 V7 @& I9 N: t - server.handleClient();3 `, S9 Q! N- W) c( e
- delay(1);
2 t# }2 i, l/ T: `3 v' W; s$ k1 d8 { - }
0 z/ v% ?. x, t# U1 W - String doGet(String url){
1 Q, b- K/ h4 W1 K! L! f: A# H - if ((WiFiMulti.run() == WL_CONNECTED)) {, D; V3 V0 j5 y, }
- HTTPClient http;' O/ L, W! Q3 C5 G* N6 }
- Serial.println("[HTTP] begin...");+ X. y8 V: a( m( ], o3 I( n& s* _
- if (url.startsWith("https")) {# P) ^4 g/ D# n. [1 ~! H2 x& f
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! \; A& B* L( T& _5 I
- } else {
" l% F& ^, g) B5 X" a - http.begin(url);
7 d* E, h2 O- z8 {, \ - }. v0 z2 @# l2 H' f5 R+ I
- Serial.println("[HTTP] GET...");
: D+ H2 |: f! s. T4 G - int httpCode = http.GET();
5 Y t/ q' U) J" S" x - if (httpCode > 0) {' k3 h+ a) k+ x; b: `+ s
- Serial.printf("[HTTP] code: %d\n", httpCode);! `7 x$ I% `! W" Q2 l$ m
- if (httpCode == HTTP_CODE_OK) {2 J" t1 ^( z( | x8 J9 D, H& F
- String payload = http.getString();2 c0 y/ N6 K$ q3 C' K5 i) M
- Serial.println(payload);
1 ]! j$ d3 e! T( @: h- t - Serial.print("\r\n");7 e V* z( c8 h4 W9 Q) @
- return payload;4 [! A/ p7 ]3 z8 q) Y
- }
4 }, `( V* d& o - } else {
9 n* J1 o4 _+ A' [* | - Serial.printf("[HTTP] GET... failed, error: %s\n",
+ ^1 Z$ E& p3 Z- j - http.errorToString(httpCode).c_str());) T; d9 J) s8 R* q" @7 _ q
- }
; ^6 q0 x, x9 [ - http.end();
~. I1 E. K6 ?9 ?! a - return "";) F# I7 [. c5 m0 K
- }
! A- o8 w5 O. b1 f$ c$ J6 U - }
# _# @* l+ v, z+ E6 k m - void mainAction() {
" p, ]! n7 z8 h9 {' @ - // 发送请求: L* Q- ?9 ^# I/ |) @+ Z% x$ ^4 S0 P$ ]
- doGet("http://google.cn");
/ V6 D+ c0 c+ [+ W$ x: f. O! O2 n0 q - }9 L6 n4 x0 y9 T
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