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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)/ S' g/ R D$ h% T
- #include <ESP8266HTTPClient.h>
3 {9 ]% s& T8 V5 l0 Q. h7 O1 c& A - #include <ESP8266WiFi.h>
. x2 z/ [5 \! o h9 i - #include <ESP8266WiFiMulti.h>3 ^. j0 [' z" B+ k* y0 z. p) T
- #include <ESP8266WebServer.h>2 \5 R8 ?* u$ G7 P
- #include <arduino.h>
* q( j4 r! i0 q8 F - ESP8266WiFiMulti WiFiMulti;
2 |1 }" |' D0 G' R7 \. J - ESP8266WebServer server(80);
9 a* S x- u9 l9 L* `% A! O - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! ^5 K+ J5 q% D+ K7 W) g - ADC_MODE(ADC_VCC);; m7 E1 G2 T$ p
- void setup() {
J& O4 a: O" Z5 @ - Serial.begin(115200);
1 |, k4 S! J2 P- S - Serial.print("\r\n\n");$ ` S, _3 [: q
- pinMode(2,OUTPUT);. a0 H! C. I! j3 \9 Y
- // WIFI6 i9 p$ | K' m( @8 B4 `+ ]6 q
- WiFi.mode(WIFI_STA);5 I$ f# h% `7 N3 g- P5 I+ _) y
- WiFi.hostname("Sparkle");
; A' I) j6 \; ^: }# J' D3 V - WiFiMulti.addAP("wifi ssid", "wifi password");: L$ d* ~7 X: D% H
- int tryNum = 15;6 j& C- i3 u# d: \
- Serial.print("Connect WiFi");
* N& N, R- H9 `8 D3 W! h5 ?) m - while (WiFiMulti.run() != WL_CONNECTED) {
& W/ C: t3 }0 F* g% y e; i - digitalWrite(2,0);
2 `3 E6 x) B, x% @0 ~ - delay(200);
. z2 ]& H2 _& q; p* H# f - digitalWrite(2,1);, {% w3 ^) q. x4 ~/ Y6 x e
- delay(300);
. _, P+ F X2 F. p% X - Serial.print(".");; q( C& j0 p" e
- tryNum--; \8 p* U, L# K- E7 Q/ v8 J) h
- if (tryNum == 0) {) _ a7 K9 S1 ?7 V; u* F9 {
- // 1min
5 t6 |! D8 y! T% H3 h) S - // ESP.deepSleep(60e6);
: m. V, d, h. D0 | - ESP.deepSleep(0);
6 P' \5 m0 P' B8 B) z4 M# s# c - }
& ^7 c8 L2 a5 T" Q; U y$ G - }
) Z; r- A; |0 U - Serial.print("\r\n");: S; B8 B; T; o4 k( s2 t
- digitalWrite(2,1);! z" O1 T# w- M
- Serial.print("IP address : ");, r+ F/ |* T% g! I+ _1 d
- Serial.println(WiFi.localIP());
' h0 x8 T, ^" @: B" G3 J - server.on("/", HTTP_GET, [](){
2 x, x" G" {- W8 z0 i - server.sendHeader("Connection", "close");4 K7 W1 w' j, P6 ]! e( j1 m* `' S
- server.send(200, "text/html", serverIndex);
+ K8 e; r& C# X: M9 { - });
. k! l; Z7 e$ T+ F: ] - server.on("/update", HTTP_POST, [](){
- n' d' T0 _0 a U8 a - server.sendHeader("Connection", "close");
9 X; }% k1 g+ m0 u0 p# o - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ D3 d1 H3 O" a9 p8 e. `/ x- t - ESP.restart();
7 g5 R% Z! S! }; `2 _- f. V - },[](){( r( N' I6 ^1 B4 t; F" w5 V5 }4 l
- HTTPUpload& upload = server.upload();4 K+ S4 @; i6 t6 d- q7 C
- if(upload.status == UPLOAD_FILE_START){2 g) `3 M6 y2 v1 ^
- Serial.setDebugOutput(true);4 b. F4 B7 Y4 b, F
- Serial.printf("Update: %s\n", upload.filename.c_str());
9 x/ W, R4 S' N& D l1 V - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ y$ O/ q6 O& j# R
- if(!Update.begin(maxSketchSpace)){' ?& _; R; W2 [ c V0 M& O
- Update.printError(Serial);& k; y2 f0 ?, e
- }
- T/ ^! @. G7 R4 v- O - } else if(upload.status == UPLOAD_FILE_WRITE){% B6 ^; c; h3 y3 h( H- {
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- \( ` k/ k* ^% ?# A* |9 U I1 T
- Update.printError(Serial);6 e" j! H9 m# I/ _
- }
( l. x. d) C, z! g J; D+ r - } else if(upload.status == UPLOAD_FILE_END){
# g4 W0 p b$ Z" Q7 K# ? - if(Update.end(true)){
A1 U, H- E _. X* P+ r - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- r+ ^! @# O5 ?
- } else {' s# q( c. G" m+ K) q8 E/ d
- Update.printError(Serial);) q+ G2 J6 _, U, r! D% p
- }7 s) ?, J# F- X( [1 K
- Serial.setDebugOutput(false);
, T+ `3 t7 P2 B8 G* U. e - }: I/ O9 \) L$ X( C1 M" G
- yield();' n3 c: y& [0 c2 [
- });! t; O) y/ y! L q
-
* J: u/ g# r6 I2 j& s - digitalWrite(2,0);
( y1 l9 R1 V P6 N5 M3 e7 Z - mainAction();4 ^. b- q! R+ p% a9 @
- if (digitalRead(0)){
]) W3 l- u/ G. i1 v! B - ESP.deepSleep(0);0 \/ `* q1 F& o' U+ ^/ A! |
- } else {4 i @6 j6 M* O$ b' {$ I
- server.begin();
U: i$ h5 ?+ h A& H - }6 E+ J" w" t/ M+ ^2 n b, r
- }
& j) n9 [8 ?: f [ - void loop() {. t3 i$ G$ K/ G, p! X
- server.handleClient();. X6 \, G m2 f0 E6 l
- delay(1);" M0 W9 A- x! n5 n' R2 u
- }
% [3 L% |" [. F - String doGet(String url){+ a9 U, R5 S; T! @& z3 ~
- if ((WiFiMulti.run() == WL_CONNECTED)) {) }8 W" _: i/ v/ z K
- HTTPClient http;& p) |+ I! K" Q" C( U: H; [& L9 v1 }
- Serial.println("[HTTP] begin...");/ i, y7 U7 @: n$ Q& Y/ H
- if (url.startsWith("https")) {
# v W/ G" X! u8 X+ W, h - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 x# w# L" _' {9 `7 O9 N! p
- } else {
' k+ |" m; {1 L$ } - http.begin(url);+ f x3 v2 T: t! ?% z: u
- }- s4 J2 g: T. D Q# |* ?
- Serial.println("[HTTP] GET...");' y2 B1 a; Z: a
- int httpCode = http.GET(); h1 N4 I5 T! C% @/ E
- if (httpCode > 0) {
- w3 y+ F8 S9 r8 [ - Serial.printf("[HTTP] code: %d\n", httpCode);" V. ^* l: U. ` a+ w+ @8 w
- if (httpCode == HTTP_CODE_OK) {$ S4 K3 g6 F2 J7 z# F+ ]' O7 `
- String payload = http.getString();
5 U, ? U/ ]2 p, z' \9 d - Serial.println(payload);% U7 o2 F3 k- v e& K2 b! c$ v
- Serial.print("\r\n");
; D' L# i* S9 {+ O2 ~ - return payload;
) O* `) x, {+ v' V9 ^8 s - }
4 o! k3 d4 I8 ?" W7 {7 M& o5 l# b# _ - } else {
% e( V. X* r$ M. S8 `4 F - Serial.printf("[HTTP] GET... failed, error: %s\n",* h; {, y$ S Q! R Z. {
- http.errorToString(httpCode).c_str());; C2 J, N* d+ `9 }$ ~ S
- }5 E! e! E4 V) P9 j* p4 L
- http.end();
- q) q3 t( y) h0 B1 P0 { - return "";' M7 ?" s" g- Y" z) i& N: U7 {9 N
- }
+ h5 v- Q& Z+ U3 S0 B$ D - }
) u/ u, Q2 Q, t' @ - void mainAction() {, X1 ]% f s6 N. @2 z1 [
- // 发送请求
# a5 w( ?7 G' a8 H" d - doGet("http://google.cn");
% e" M! R; Q- F5 Z - }0 @" I7 w8 q: q1 K/ }$ u
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