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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)$ j1 D+ u6 ^! Y3 E1 s- i8 z
- #include <ESP8266HTTPClient.h>
4 j$ D2 J' ^9 N - #include <ESP8266WiFi.h>7 l& A7 w& M4 Y5 C- z( w: h. `
- #include <ESP8266WiFiMulti.h>% w$ e3 G: p6 \! E
- #include <ESP8266WebServer.h>
4 H$ T2 Z4 q: ~( @ - #include <arduino.h>0 b! c3 p6 S* L. M! P5 z9 i r
- ESP8266WiFiMulti WiFiMulti;1 L u/ f1 O% [( r
- ESP8266WebServer server(80);
! n/ |, ?9 H& E' {6 z+ V - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. B7 t( e( M: n5 {4 J p, b - ADC_MODE(ADC_VCC);
: ^+ g8 }1 @6 [' ~# U; C8 o2 c - void setup() {
/ G' q: J7 M( D7 _% o - Serial.begin(115200);! @ B( }) W/ z1 j" r' R' ~
- Serial.print("\r\n\n");9 R1 y6 A- |# B: s# Z. S p
- pinMode(2,OUTPUT);, b) E+ q' b. { E
- // WIFI$ a; E5 Z3 \) r2 @# R, a
- WiFi.mode(WIFI_STA); l1 z" f3 X) F# a- Z5 I# Y1 `/ {
- WiFi.hostname("Sparkle");
7 g2 ~& {1 y. o3 [" s: Q. K - WiFiMulti.addAP("wifi ssid", "wifi password");
& w0 E0 |5 {; a2 n& a - int tryNum = 15;1 ]3 k4 u5 U* m& r& _; x
- Serial.print("Connect WiFi");
, [' m+ ]0 ` \0 o) Q' x - while (WiFiMulti.run() != WL_CONNECTED) {& P6 L' Q! Z) D! F" ?) {
- digitalWrite(2,0);; }+ G; G7 |' M+ X8 w
- delay(200);
4 f; |6 I# U+ c- q! R - digitalWrite(2,1);
6 R* m4 ^& s& x2 W - delay(300);
4 M1 q: p% y3 t. {& H! v - Serial.print(".");
# o- e- d) d3 G - tryNum--;
. r6 ?$ U, c. _" y% ]1 c - if (tryNum == 0) {
Z& s7 t; v8 b; F+ S - // 1min
; W* h* O3 J* q% e+ | - // ESP.deepSleep(60e6);$ C+ k& Q& z. V) |0 \/ K L( E& r, `
- ESP.deepSleep(0);
" s" Z5 x8 n& n1 @/ @ - }
0 G8 Q7 P- a" F p9 b - }* b! C7 S; h/ L D1 R' U
- Serial.print("\r\n");
; Z9 B0 s+ w s8 U- o - digitalWrite(2,1);
$ W+ W9 Z8 ?" l% m& E# n - Serial.print("IP address : ");! I/ S/ b+ M. U& c2 A0 O) X, J; ~
- Serial.println(WiFi.localIP());
4 }) C. d; C7 f. J X C - server.on("/", HTTP_GET, [](){
4 I& ]) z# J( t& Z" ~; w I" B0 W; y - server.sendHeader("Connection", "close");
, N& Y! W9 f6 B3 r( a - server.send(200, "text/html", serverIndex);+ _ ^. \# T: O5 a" t' B
- });( }6 r/ e) d$ v
- server.on("/update", HTTP_POST, [](){* P b: M% P8 u% \7 g& v# F& a4 O
- server.sendHeader("Connection", "close");! {) ^, n9 x8 e x0 K/ m& w) {
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 F7 N0 j; L3 O: y8 @, d- L6 u5 [. g
- ESP.restart();
/ J$ o$ p' X7 M1 |8 s | - },[](){) ~9 u6 T: g5 q. G
- HTTPUpload& upload = server.upload();
/ I: n @1 z: A6 B* z9 s0 t - if(upload.status == UPLOAD_FILE_START){
8 O) l* S) d1 L, H - Serial.setDebugOutput(true);; L; \3 N+ s' g g
- Serial.printf("Update: %s\n", upload.filename.c_str());
5 e) z7 K( i1 y9 G5 t% k - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* J h0 T8 Y1 i- X - if(!Update.begin(maxSketchSpace)){2 e! Z- e( _$ i! j" B( ?7 a
- Update.printError(Serial);
8 A7 l! e8 a2 b/ ~- P3 ~, g - }
5 j, G6 U: k& _$ \# a - } else if(upload.status == UPLOAD_FILE_WRITE){5 _. y) u6 o9 ]; }
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){$ t1 d; e0 S7 y8 M h
- Update.printError(Serial);1 Z) ~/ O o/ R: ~6 ~( o
- }
; Y- J! m' m$ x2 O9 M - } else if(upload.status == UPLOAD_FILE_END){
! b: h9 e* }* _: q6 i ?* Z ~% | - if(Update.end(true)){/ z# M8 G5 r% ^" v) f! }
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ V4 S& g o- S+ l5 A& |) D
- } else {, j+ c8 I& H8 |! r
- Update.printError(Serial); s3 p8 l l* |) q
- }* S4 @+ ]; e' I0 \0 L
- Serial.setDebugOutput(false);
( }4 i; T& q5 A: M, | - }" p7 ?& ~# [ P
- yield();
6 S3 z5 G( ]3 ?) q+ Z - });
2 n9 n( x# y2 a4 P# e5 ~ - & {) _0 Z3 p6 s5 C! P& X
- digitalWrite(2,0);/ r! O3 ]( ^5 F4 J! H" j
- mainAction();2 d, o. M2 p3 ?; i. t
- if (digitalRead(0)){2 j! W5 b& u# G+ L5 u$ c; N- ^
- ESP.deepSleep(0);
0 Z$ A0 U, _9 N - } else {4 n) e; y/ d3 A6 F8 U
- server.begin();: ?* Q( l ~4 L$ T6 Q. l- {
- }
) n0 H- q, E; b% T - }1 ~/ f& K+ \: Z+ }
- void loop() {
9 Q& T/ C- M$ s; E; S/ H9 y* K2 U - server.handleClient();
$ V) m3 U* s& x% t - delay(1);
4 g1 Q" v5 w; m* i8 P% ]$ [7 R9 s3 B1 S - }2 _/ y1 x+ S/ j' H
- String doGet(String url){6 A# [( S2 w. J
- if ((WiFiMulti.run() == WL_CONNECTED)) {- Y+ I( H4 A9 {- `. {' r) l
- HTTPClient http;
. J8 t8 v8 O/ q$ h& u4 Q - Serial.println("[HTTP] begin...");
1 O' p2 Q8 U) { - if (url.startsWith("https")) {) }$ R% C, T/ {3 n( G% G
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 H- G: P; p) u& E5 h# z) E* W# i1 m - } else {
. D5 T& L; g, z5 z - http.begin(url);
1 r+ m3 m! x* m3 _+ F - }
1 R, j; t, ]4 a+ b3 P' N% L$ l - Serial.println("[HTTP] GET...");
/ }% _3 y" |/ C' V& h3 f/ I - int httpCode = http.GET();
/ l( i* ?1 ]% B) h: y0 I7 ^7 e2 T - if (httpCode > 0) {
+ j. _3 y" P& G v R9 ` - Serial.printf("[HTTP] code: %d\n", httpCode);
$ X. j( {: t- ]& o: R - if (httpCode == HTTP_CODE_OK) {* |. t0 C5 [; U/ Y' A6 s `
- String payload = http.getString();6 M0 y. p T6 R. ?) R3 T5 m" Z: U
- Serial.println(payload);
$ C! \: H+ m) i; x: o7 f' y - Serial.print("\r\n");% X+ Z, c# h$ N4 k3 [, W1 {
- return payload;
3 n2 [6 j5 N$ h! [; h, r# g1 ^& ` - }
9 b. g5 l. N0 R! F7 K8 G K - } else {
, E2 G+ p9 j# v1 z1 R D# ^. Q - Serial.printf("[HTTP] GET... failed, error: %s\n",
( @& Z) P( F, Z' ]( f; V! { - http.errorToString(httpCode).c_str());
5 }& @0 n& v7 j( T: V - }3 s$ ^- v+ V* \5 X
- http.end();7 V+ K/ n8 v$ ]7 I9 x' c
- return "";/ [ ?" g/ B; a: U
- }+ p& V6 k5 R- Z
- }
' _8 I, y# ^' o7 o! L1 K0 `6 O, L - void mainAction() {
. a" N H" @* q. J: s* L5 W - // 发送请求
& T7 R5 V: A' P7 J+ q - doGet("http://google.cn");
& g; L- }+ [& r6 a/ g - }
. L1 }& a4 `4 @7 d9 }. N+ a8 H
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