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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)
' _. L- O- s5 L& a1 n- #include <ESP8266HTTPClient.h>
. ^6 h3 b1 R% [ - #include <ESP8266WiFi.h>2 f# j7 r9 k; u% H9 Y* `$ I# P
- #include <ESP8266WiFiMulti.h>
0 q6 e3 |# \6 G4 M' | - #include <ESP8266WebServer.h>( b3 |/ l# e" P' P; J7 w
- #include <arduino.h>
9 s4 E9 F5 W, _. H - ESP8266WiFiMulti WiFiMulti;. S2 g" u& T1 c- G, w. A
- ESP8266WebServer server(80);5 [( U2 i$ ~' g, H3 l
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" i+ Q0 u8 W7 v - ADC_MODE(ADC_VCC);# k5 f6 ]9 E$ O3 \# Y& u
- void setup() {
( y% S, d3 G1 \2 R8 @: B" `. ?1 G - Serial.begin(115200);" q; `5 X3 t3 E& u* k8 l
- Serial.print("\r\n\n");
6 z/ o) j& ~0 x/ A {1 D7 r - pinMode(2,OUTPUT);
2 c; _/ }& O+ z. z7 |8 {. I - // WIFI
1 o+ y O$ {. q1 N6 \3 o/ q$ e- { - WiFi.mode(WIFI_STA);
6 p" C$ c4 F N9 | - WiFi.hostname("Sparkle");
# `5 d" H/ X# q- P& ^ - WiFiMulti.addAP("wifi ssid", "wifi password");
3 [' B8 [) |6 w5 f' o/ L - int tryNum = 15;
: ?0 R5 [4 y6 t, G) B0 I6 k - Serial.print("Connect WiFi");
( q& ^+ s+ P* q0 Q+ i# [- f - while (WiFiMulti.run() != WL_CONNECTED) {
; @; R( c9 W( i6 A4 r' n! M4 o+ D - digitalWrite(2,0);+ J/ G$ ~1 \- f9 H- u+ ^! g6 I
- delay(200);$ n$ p' ]" N4 o# ^ x7 m+ K
- digitalWrite(2,1);
# v8 P$ Y K m) o - delay(300);. ~$ N5 ~. t1 d5 b
- Serial.print(".");
) |2 l I. f1 e% q6 J - tryNum--;. y7 r9 N) w: r( H
- if (tryNum == 0) {6 v' b2 i ~# B5 Z% G
- // 1min
2 r1 C9 ^. q% H2 o6 q, o - // ESP.deepSleep(60e6);
/ Q/ o- n5 [" E - ESP.deepSleep(0);
) p6 ~3 L# }7 e - }
+ ^5 {+ H% W5 P; r$ S/ l: { - }6 p4 i$ D' C6 S2 b
- Serial.print("\r\n");) |1 W- }1 w* o( l3 l$ x6 h
- digitalWrite(2,1);% ?! c- L3 w: a5 n
- Serial.print("IP address : ");# `, E8 _3 m- A }8 C
- Serial.println(WiFi.localIP());* H& D# g: B6 U+ i2 O" M9 z. j; J
- server.on("/", HTTP_GET, [](){& [ R: z4 H' P+ v
- server.sendHeader("Connection", "close"); V; k, s- R8 e/ M3 X* @+ a
- server.send(200, "text/html", serverIndex);% ^6 }6 ?; e( X1 N
- });, I/ o3 D2 ~' A5 ^8 O! L% G& t, ?0 _
- server.on("/update", HTTP_POST, [](){) V- C1 w: B: p1 f( L4 [1 i* a
- server.sendHeader("Connection", "close");
2 t# g8 y0 i2 `; s( ~$ v - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 @. ]7 D. z1 D: E - ESP.restart();
+ L" W; N5 G: N1 f3 E( Z - },[](){# N* u3 p i* D
- HTTPUpload& upload = server.upload();6 O) J0 e& W2 m% q" E, T4 s0 K# r
- if(upload.status == UPLOAD_FILE_START){
2 P* d: A$ l. O9 V8 C# t - Serial.setDebugOutput(true);8 }& B# V+ L+ V& W3 Z2 @% V, r/ [
- Serial.printf("Update: %s\n", upload.filename.c_str());+ @3 J" S9 `9 ]9 K" N
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
$ _7 z- B1 k- d* N+ p/ M4 ]0 q - if(!Update.begin(maxSketchSpace)){
( h; C9 Z& D5 x2 l; B - Update.printError(Serial);
8 g/ K7 L8 o; P# m9 x& P$ o - }
% T$ s) `1 q. A1 z: U - } else if(upload.status == UPLOAD_FILE_WRITE){; A7 Q2 Y. N9 w; V
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( T: _4 k: W2 } - Update.printError(Serial);
0 `8 v# y6 o: C - }0 J4 n4 ^2 v2 K
- } else if(upload.status == UPLOAD_FILE_END){2 N, ?& G9 L0 C
- if(Update.end(true)){
0 S. s" d+ b' r - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ H5 A2 w9 R. M5 \+ A4 B6 w
- } else {
8 z% @: `3 T4 u. O5 z9 S - Update.printError(Serial); c! [) @" B) ~/ Y
- }. C2 G7 n: n2 { d1 C) ]
- Serial.setDebugOutput(false);
" X1 R+ T2 d- R- E - }
" o. B" q3 s+ g5 R ] - yield();6 h: @( O9 K0 W1 C5 p+ v
- });. P3 v4 H& c5 U, W. g5 }4 I
-
! u7 h7 V+ K) }3 {6 d - digitalWrite(2,0);( r" {8 G0 ~% b' c$ k
- mainAction();
+ R+ I! @2 S. f9 s2 c0 g; Z: O - if (digitalRead(0)){2 B) r' O1 c f, n' u& _
- ESP.deepSleep(0);
3 e% W. ]5 j6 r0 I+ m - } else {4 d. r* J S* ~2 x6 o3 X% W! e& c E8 J
- server.begin();
$ B3 {. [1 |% q* I- ?9 z1 o0 d - }
4 G0 T: c4 M' n - }
+ u# j6 j9 z) A: w - void loop() {8 i" o8 Q# V7 _6 ^! F5 c
- server.handleClient();4 ?, g& [+ ]! O$ I
- delay(1);% f6 u M% t4 j) Q' \
- }7 i- ]% s+ L u& W' U5 O, P
- String doGet(String url){0 f, x- T X& S9 m8 b: P
- if ((WiFiMulti.run() == WL_CONNECTED)) {
. m+ F3 R( T4 j. z/ \- j - HTTPClient http;7 g5 I, Q: Y' q
- Serial.println("[HTTP] begin...");
# k+ t% O/ a. L' ^ - if (url.startsWith("https")) {0 n. N. j( b, T1 U' P, F' X
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! ]5 g' `1 f& D3 t - } else {3 W5 I5 Z A% S+ M! @ j
- http.begin(url);7 j, i- I+ S6 d9 E& V w' \
- }
S& a& j7 M0 Y* i$ s - Serial.println("[HTTP] GET...");6 g/ e2 t. Z; `8 {2 x% ~
- int httpCode = http.GET();4 `$ ?1 y0 F h' {$ V e+ X0 o
- if (httpCode > 0) {
6 S2 G6 C+ I* |0 n* [& Z - Serial.printf("[HTTP] code: %d\n", httpCode);5 w7 Y! w( D$ ~! @. }0 H7 z& w
- if (httpCode == HTTP_CODE_OK) {
3 r0 E2 T7 v. t8 ~ - String payload = http.getString();
- c) H: X, ]% W9 N4 B - Serial.println(payload);1 L( \& Z# X5 w: F; a
- Serial.print("\r\n");
/ V6 P& L# c9 d" L$ ~ - return payload;0 n3 g6 d; J; f& S; [2 H b- a
- }
6 a: Z" Q0 v& h7 W - } else {- V: X3 T! H. ~
- Serial.printf("[HTTP] GET... failed, error: %s\n"," w6 f" l; @+ C1 l4 S( d
- http.errorToString(httpCode).c_str());5 F% {0 t* V& [% a' N$ I. b% \1 o
- }% D% ?0 d4 D; b. c7 U
- http.end();
8 F. o0 j$ s3 G, b - return "";, j; T! \7 ~' v4 B( K$ q8 H f# H; _
- }; j6 B8 E0 C$ |2 ?0 V( z: }
- }" D7 e- h/ L/ I. h8 R) b4 ~0 H1 [
- void mainAction() {0 p3 n% W# n8 u! M" V2 p
- // 发送请求+ }: z: E$ y" R* V6 ~
- doGet("http://google.cn");
z( j8 {. P' r1 B - }
4 M( p6 [* s ~' s# [ u4 A
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